A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected:
Age Number of Customers
< 20 <20 83
20-29 63
30-39 99
40-49 65
50-59 73
≥ 60 ≥60 69
One customer is chosen at random for a prize giveaway. (Round answers to 4 decimal places.)
a. What is the probability that the customer is at least 20 but no older than 59?
b. What is the probability that the customer is either older than 60 or younger than 40?
c. What is the probability that the customer is at least 60?

Answers

Answer 1

Using it's concept, it is found that the probabilities are as follows:

a) 0.6637.

b) 0.6947.

c) 0.1527.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem, there is a total of 83 + 63 + 99 + 65 + 73 + 69 = 452 customers.

Item a:

63 + 99 + 65 + 73 = 300 are at least 20 but no older than 59, hence:

p = 300/452 = 0.6637.

Item b:

83 + 63 + 99 = 245 are younger than 40.

69 are older than 60.

Hence:

p = (245 + 69)/452 = 0.6947.

Item c:

69 customers are at least 60, hence:

p = 69/452 = 0.1527.

More can be learned about the probability concept at https://brainly.com/question/15536019


Related Questions

Please answer this (who ever answers correctly gets brainlest)

Answers

Answer:

The answer would be 0.21 meters.

Step-by-step explanation: hope this helps!

Answer:

0.21 meters

Step-by-step explanation:

To convert centimeters to meters, divide the centimeter variable by 100.

21/100 = 0.21

A and B are two similar solids.
b height= 15 cm a height= 10 cm
The volume of A is 400 cm. Work out the volume of B.​

Answers

Answer:

15/10 =1.5 linear s.f

1.5^3 x 400 =1350

1350cm^3

Hope this helps!

y
is directly proportional to
x
2
.
If
y
=
12
when
x
=
2
find
x
when
y
=
48

Answers

To solve this we first of all need to find the distances travelled by both Vaimiti and Jabril and then we will find their difference...

Let's start solving ~

:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:

Distance covered by Vaimiti ⤵️

[tex] \tt \leadsto \: Distance = Speed × Time[/tex]

Vaimiti's speed = 1.1 m/s

Time taken by her = 25 minutes = 25×60 = 1500 seconds

[tex] \sf \leadsto \: Distance = 1.1 \times 1500[/tex]

[tex] \boxed{ \rm\multimap \: Distance = 1650 \: m}[/tex]

[tex]\red{ \rule{35pt}{2pt}} \orange{ \rule{35pt}{2pt}} \color{yellow}{ \rule{35pt} {2pt}} \green{ \rule{35pt} {2pt}} \blue{ \rule{35pt} {2pt}} \purple{ \rule{35pt} {2pt}}[/tex]

Distance covered by Jabril ⤵️

[tex] \tt \leadsto \: Distance = Speed × Time[/tex]

Jabril's speed = 1.3 m/s

Time taken by her = 30 minutes = 30×60 = 1800 seconds

[tex] \sf \leadsto \: Distance = 1.3\times 1800[/tex]

[tex] \boxed{ \rm\multimap \: Distance = 2340 \: m}[/tex]

[tex]\rule{300pt}{3pt}[/tex]

Difference between distances travelled by them↯

Distance travelled by Vaimiti = 1650 m

Distance travelled by Jabril = 2340 m

[tex] \bf\nRightarrow \: Difference = 2340 - 1650[/tex]

[tex] \bf \nRightarrow \: Difference = 690 \: m[/tex]

➪ Therefore, The difference between distance travelled by them is 690 meter...~

A reflection line is equidistant from a pre-image point and its image.



Therefore, in segment AA’, point M is the
Line segment A B is reflected across a line to form line segment A prime B prime. Points M and N are halfway between points A and A prime and B and B prime.

Answers

Answer:

Reflection Lines A reflection line is equidistant from a pre-image point and its image. [ Therefore, in segment AA , point M is the Midpoint.

Step-by-step explanation:

Found on weegy.

Answer:

midpoint

Step-by-step explanation:

Can sombody help me with this ?

Answers

Answer:

They flipped it over the X and the it was flipped over the Y

Step-by-step explanation:

What is this called and what is it used for?​

Answers

Step-by-step explanation:

a matrix ?

it is generally a n×m dimensional table that defines the transformation and relationships of multidimensional objects like vectors.

in other words it is a function on things like coordinates, directions, lengths, ...

Please help me with this please actually help me please and thank you

Answers

Answer:

solutions: (0, 0) and (3, -1)not solutions: (0, -7) and (-7, 2)

Step-by-step explanation:

a.

The problem statement tells you that the doubly-shaded region to the upper right is where the solutions are. You have an infinite number of solution points to choose from in that region.

(0, 0) and (3, -1) are solutions

__

b.

Everywhere else on the graph are points that are not solutions.

(0, -7) and (-7, 2) are not solutions

Help me w/this quick plz :)

Answers

Answer:

[tex]3x + 5y \leqslant 108[/tex]

Translate the following word phrase into an algebraic expression.

“the product of 4 and a number is increased by 7”


A. x ÷ 4 + 7


B. 4(x + 7)


C. (x – 4) + 7


D. 4x + 7

Answers

Answer:

D

Step-by-step explanation:

4x + 7

this is exactly, 1:1, what the sentence said.

the product of 4 and a number = 4x

is increased by 7 = 4x + 7

John walked 9 5/8 miles at an average speed of 1 3/4 MPH. How long did it take John to walk this distance?

Answers

Answer:

5 hours and 30 minutes

Step-by-step explanation:

Convert all fractions to decimals for easier division

9 and 5/8 = 9.625

1 and 3/4 = 1.75

Then divide 9.625 by 1.75 to get the hours amount

9.625 / 1.75 = 5.5

0.5 of an hour is 30 minutes, so the final answer is 5 hours and 30 minutes

Answer:

5.5 hours

Step-by-step explanation:

9.625/1.75=5.5hr

Miguel is organizing his collection of sports memorabilia into glass display cases. He wants to cover each side of the cases with a protective film to protect the glass. This net represents a single display case.

How much film is needed to cover each display case?

Enter your answer in the box​

Answers

Answer:4240

Step-by-step explanation:took the test

Answer:

4240 inches²

Step-by-step explanation:

In order to find the amount of film needed, we have to find the surface area of this cuboid.

Formula to Find Surface Area of Cuboid: , where w = width, l = length, and h = height.

Therefore, the answer is 4240 inches²

A plant has an initial height of 2 inches and grows at a constant rate of 2 inches each month. A second plant that also grows at a constant rate has an initial height of 1 inch and is 29 inches tall after 1 year. After how many months are the plants the same height?

Answers

Answer:

Answer:4.8 monthsStep-by-step explanation:First, let's write down the information that we are given.Plant A: Initial Height: 3 in.Constant Rate of Growth (CRG): 2in/month (2 inches per month)Plant B:Initial Height: 1 in.CRG: 29in/year (29 inches per year)We can see that Plant B grows 29 inches per year, so lets convert Plant B's 'CGR' to months.Plant B - Divide by 12 (12 months in a year)29/12 in/yearNow, Lets put these into equations:Plant A: y = 2x + 3Plant B: y = 29/12 x + 1Now, set these two equations together and solve for x.2x + 3 = 29/12 x + 12 = 5/12 x4.8So, after 4.8 months, the plants will be the same height.

hope it helps you

Pls help!!! AsAP!!!!!!!!!

Answers

Answer:

15cm

Step-by-step explanation:

gudluckkk answering

How many boxes of cereal can you buy with $9 if one box costs $3? in one step eqution

Answers

Answer:

3 Boxes

Step-by-step explanation:

$9/$3 = 3 Boxes

Hence, you can buy 3 Boxes

[RevyBreeze]

Can anyone solve?

[tex] \sf{5x + x = ?}[/tex]

Answers

ASNWER: 6x
To solve this you would need to simplify

The sum of 5x and x as given in the question is 6x

Sum of expression

Given the following expression

5x + x

We are to take the sum and this is given as:

5x + x  = (x+x+x+x+x) + x

5x + x = 6x

Hence the sum of 5x and x as given in the question is 6x

Learn more on sum of function here: https://brainly.com/question/24205483

how do you solve
2h + 8 > 3h -6

Answers

Answer:

h<14

Step-by-step explanation:

2h+8>3h-6

2h-3h+8>-6

-h+8>-6

-h>-6-8

-h>-14

h<14

plase help me I need it and i need it quick too so please help me it's 20 points pls​

Answers

The answer is 720 inches.
Answer:
720 square inches

step-by-step explanation:
Area of rectangle = length(how long it is) × breadth(how wide it is)
So in this case,
Area of welcome mat = 30 × 24 = 720 square inches

6(12)(3)=1/3(12)(16)x. Please help, need to check my answer. Thanks

Answers

X=27/8 to make it equal

,/,/,/,//,/,/,/,//,,,,,,///,,/,///,/,,/,,/,/,/,/,,

Answers

Answer :

hmmm ... :0 ?

Answer:

true

Step-by-step explanation:

=
If f(x) = 2(34) + 1, what is the value of f(2)?

Answers

Answer:

34.5 i thiNK

Step-by-step explanation:

PEMDAS

2 times 34 is 68 plus 1 is 69

Therefore for it to be equal f would have to be half of 69 which is 34.5

HEY PLEASE 50 POINTS

What is (2^2) x 3.14 (or pi)

Answers

Answer:

Hello

The answer you're looking for is 12.56 or 12.5663

Step-by-step explanation:

Have a wonderful day dear <3

Answer:

the answer is 12.56

Step-by-step explanation:

Simplify − 4 r + s − 2 r − 3 s

Answers

Answer:

[tex]-6r-2s[/tex]

Step-by-step explanation:

Given the following question:

[tex]-4r+s-2r-3s[/tex]

In order to find the answer, we group the terms with the same variable and then simplify by combining like terms.

[tex]-4r+s-2r-3s[/tex]
[tex]-4r-2r+s-3s[/tex]
[tex]-4r-2r=-6r[/tex]
[tex]s-3s=2s[/tex]
[tex]-6r-2s[/tex]

Hope this helps.

Which expression correctly represents "nine less than the quotient of a number and four, increased by three"? StartFraction n Over 4 EndFraction minus 9 3 StartFraction 4 Over n EndFraction minus 9 3 9 minus StartFraction n Over 4 EndFraction 3 9 minus StartFraction 4 Over n EndFraction 3.

Answers

Answer:

n/4-9 +3

Step-by-step explanation:

to answer this question we have to analyze the information given.

The quotient of a number means the result of the division of 2 numbers.

In this case the numbers are: a number (n) and 4 . n/4

Nine less than that quotient means we have to subtract 9 to the quotient.

n/4-9

Increase by three: we simply have to add 3

n/4-9 +3

Feel free to ask for more if needed or if you did not understand something.

Someone help pls -……

Answers

Answer:

d) 35ft

e) 6 seconds

f) 250°

Step-by-step explanation:

If it makes one rotation (360°) in 36 seconds, then it turns 10° every second.

   36 secs = 360°

⇒ 1 sec = 360/36 = 10°

d)  After 9 seconds, it has turned:

9 x 10 = 90°

Therefore, it will be 15 + 20 = 35ft from the wall

e) 60° = 6 seconds

f) 25 seconds = 25 x 10 = 250°

Three sides of a quadrilateral are equal lengths. The length of the fourth side is 5 inches.

Answers

Answer:

A

Step-by-step explanation:

[tex] x + x + x + 5 = 26[/tex]

[tex]3x + 5 = 26[/tex]

The water dam is filled up using the first tributary in 1 hour and 10 minutes, using the second
tributary in 60 minutes. How many minutes it takes to fill the half of the dam using both of the
tributaries, if the second tributary will be opened 12 minutes after the first one ?

Answers

Answer:

I would use quaro is is faster.

Step-by-step explanation:

what temperature is 2°C higher than normal body temperature​

Answers

[tex]it s \: fever \: [/tex]

We get fever when our body temperature reaches to 100° C and our normal body temperature is 98°C.

Can anyone help me with this

Answers

Answer:

(3, -6)

Step-by-step explanation:

Both equations are equal to y, so you can make them equal to each other:

-2x = 5x-21

Get the same terms on the same side by subtracting 5x from both sides"

-7x = -21

Get x alone by dividing both sides by -7:

x = 3

The simplest way to find y is by filling in 3 for x in the first equation:

y = -2(3)

Multiply:

y = -6

Check your answer by filling in 3 for x in the second equation:

y = 5(3) - 21

Multiply:

y = 15 - 21

Subtract:

y = -6

To check both answers together, fill in 3 for x and -6 for y in both equations (although we already checked both answers above):

-6 = -2(3)

-6 = -6

-6 = 5(3) - 21

-6 = 15 - 21

-6 = -6

Answer:

3,-6

Step-by-step explanation:

A survey was conducted on a random sample of 100
middle school students regarding their favorite color
out of blue, red, or yellow. 33 students chose blue, 34
students chose red, and 33 students chose yellow.
Greg concluded that the students at the middle
school have a preference of the color red. Is his
inference correct? Why or why not?

Answers

Answer:

No, he is not correct because red and yellow got the same amount of votes when it came to adding them up.

Step-by-step explanation:

Answer:

he is because there is 34 beats 33 so 34 would win

Step-by-step explanation:

WILL GIVE BRAINLY PLEASE HELP!!!!!! In this triangle, what is the value of x? enter your answer, rounded to the nearest tenth, in the box.

Answers

Answer:

     x ≈ 67.1

Step-by-step explanation:

The side adjacent to x° is given, along with the hypotenuse. That suggests the relevant trig relation is ...

  Cos = Adjacent/Hypotenuse

  cos(x°) = 28/72 = 7/18

The angle is found from the cosine using the inverse cosine function:

  x° = arccos(7/18)

  x° ≈ 67.1°

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Factinate claims that 84% of teenagers think highly of their mother. To investigate this claim, a school psychologist selects a random sample of 150 teenagers and finds that 135 think highly of their mother. Do these data provide convincing evidence that the true proportion of teens who think highly of their mother is greater than 0.84?1. State appropriate hypotheses for performing a significance test. Be sure to define the parameter of interest The school psychologist performed the significance test and obtained a P-value of 0.0225. 2. Explain what it would mean for the null hypothesis to be true in this setting.3. Interpret the P-value. 4. What conclusion would you make at the a = 0.05 level? What legendary cooking school did marthe distel start in 1895?. Choose the number equal to:16.48 4 A. 65.92 B. 4.12 C. 4.12 D. 65.92 help me Is important An individual with ___________________ would be more inclined to embrace policies that restrict immigration but reject affirmative action. What evidence would help us determine whether hydroponic plant food, air, or water could be involved in a chemical reaction to make food molecules? please help i will give crowns 12 = 3X X = 7X = 57 X = 11X = 27.7 X = Bayley wants to connect a new external hard drive to his Windows PC. He wants the fastest connection type available because he plans to edit video directly to and from the external hard drive. Which connection type should Bayley use to get the fastest connection possible?A. USB 3.0.B. Thunderbolt 3.C. eSATA v2.D. Lightning connection. 8.Which passenger liner was sunk by a German submarine on May 7, 1915, prompting U.S. PresidentWilson to protest attacks on citizens of neutral countries?A. BismarckB. LusitaniaC. OlympicD. Titanic Do you think Daedalus and Icarus deserved their fate? What is the world's smallest country? what is the answer for : 94.284 multiplied by 8? its due veryyyyy soonnnn help One mole of gas at STP occupies a volume ofa 22.0Lb 20.0Lc 224d 25.0 L BADWhich direction on the map best describes the movement of African Americans during the Great Migration?O A. from A to C and DO B. from B to A and DC. from C to A and BOD. from D to B and C Activity 3: Let's wrap it up! Directions: Write down 3 ideas or learnings from what was presented 2 interesting facts you have read 1 question in your mind about the lesson 3 things I have learned 2 interesting facts that I have learned 1 question in my mind about the lesson 4 ways in which you can address the identified socio economic factors to achieve your goal. what is area of ths shape When person reaches the middle age who wants brainlyest:)