Mathematics High School

The stem-and-leaf plot shows the numbers of hours 10 students studied for their math exam. Find the mean, median, mode, range, and interquartile range of the data

Answers

Answer 1

The question is incomplete as the stem and leaf plot required to to provide data for y question isn't given.

In other to help with this question, I have attached a stem and leaf plot with 10 data values and I will be calculating the required statistical measures for the dataset. The knowledge can thus be applied to solve similar questions on your exact data set.

Answer:

Kindly check explanation

Step-by-step explanation:

Firstly, we need to write out values if the dataset :

Each value in the dataset is a combination of the stem and the corresponding leaf or leaves.

For the stem plot attached :

Dataset , X : 08, 12, 17, 18, 19, 22, 23, 31, 35, 40

The mean :

Σx / n

n = sample size = 10

= 225 / 10

= 22.5

Arranging data on ascending order :

08, 12, 17, 18, 19, 22, 23, 31, 35, 40

The median :

1/2(n+1)th term

1/2(11)th term = 5.5 th term = (5+6)th term / 2

Median = (19+22)/2 = 20.5

Mode = all dataset (since they all occur once).

Range = (maximum - minimum) = 40 - 8 = 32

Interquartile range : (Q3 - Q1)

Q3 = 3/4(n+1)th term ; 3/4(11) = 8.25th term

Q3 = (8th + 9th) term / 2 = (31+35)/2 = 33

Q1 = 1/4(n+1)th term ; 1/4(11)th term = 2.75 th term

Q1 = (12+17)/2 = 14.5

Interquartile range : (Q3 - Q1) = 33 - 14.5 = 18.5

The Stem-and-leaf Plot Shows The Numbers Of Hours 10 Students Studied For Their Math Exam. Find The Mean,
Answer 2

Answer:

Median: 11

Mode: 3

Range: 30

Step-by-step explanation:

Just took the test :D

Related Questions

Juana depositou em sua conta bancária as importancias de R$500.00 e R$350,00 e R$450.00 o SALDO DE SUA CNTA CORRENTE REPRESENTDADO COM NUMEROS INTEIROS É DE QUANTO?

Answers

Responder:

R $ 1300

Explicação passo a passo:

Dado que :

Quantia depositada:

Primeiro depósito = $ 500

Segundo depósito = $ 350

Terceiro depósito = $ 450

O valor total depositado é a soma de todos os três depósitos feitos e constitui o saldo atual da conta.

Primeiro depósito + segundo depósito + terceiro depósito

$ (500 + 350 + 450)

= $ 1300

Help!!! I will give brainiest!

Answers

Answer:

12(5-x)

Step-by-step explanation:

Seems you already had the right answer in mind.

Find the sine and cosine of angles A and B in the figure.

1. sin A = _______
cos A = _________

2. sin B = _______
cos B = _________

Answers

When showing for sin and cos remember SOH-CAH-TOA sin- side over hypotenuse and cos- adjacent over hypotenuse

What are the opposites of 5, −3.4, 3.35, and 9 1 3 ? Enter the answers in respective order, each separated by comma.

Answers

Answer:

-5, +3.4, -3.35, and- 9 1 3

Step-by-step explanation:

To find the opposite of any number we multiply it with -1 or divide it with -1

The opposite of 5 is given by  5 (-1)= -5

The opposite of -3.4 is given by  -3.4 (-1)= 3.4

The opposite of 3.35 is given by  3.35 (-1)= -3.35

The opposite of 913 is given by  913 (-1)= -913

This property is called the additive inverse. The additive inverse is that property which on addition of the numbers gives the answer = zero.

5-5= 0

-3.4+3.4= 0

3.35-3.35=0

913-913=0

Kelly's team won 85% of the games they played in a season. The team lost 12 games. How many games did Kelly's win in the season?

Answers

Answer:

68 games

Step-by-step explanation:

Given data

out of 100%

they lost 15%

Let the total game played be x

so

15/100*x= 12

0.15x= 12

x= 12/0.15

x= 80 games

the total games played is 80

Hence the games won

=total games-games lost

=80-12

=68 games

HELP ME PLEASE ILL BRAINLIEST YOU IF YOU GET IT RIGHT
which lines, if any, are parallel in the diagram below?

Answers

The correct answer would be C
The correct answer is c

PLEASE HELP ASAP I’LL MARK BRAINLIEST Find the area of the figure.

Answers

Area of a semicircle is 1/2* πr^2
Area of a square is s^2


Square’s area: 4mm^2

The radius is 3mm
Plug into the equation

1/2* π(3^2)
1/2* π(9)

We can use 3.14 as an estimate of pi

1/2*28.26

14.13mm^2

Now just add them both

Total area 18.13mm^2


If ax – b = 0 and a #0, then x =

Answers

Answer:

x = [tex]\frac{b}{a}[/tex]

Step-by-step explanation:

Given

ax - b = 0 ( add b to both sides )

ax = b ( divide both sides by a )

x = [tex]\frac{b}{a}[/tex]

In a random sample of 800 seniors at Mill Creek High School, 100 students are asked if they prefer graduation at the High School or at the Gwinnett Infinite Energy Arena, Eighty-four students preferred to have graduation in the Mill Creek stadium. How many seniors prefer to have the Graduation Ceremony at Mill Creek?
504
608
672
706

Answers

Answer:

Step-by-step explanation:

84%

800*.84 = 672 students prefer the stadium

Each of the following is a sugar EXCEPT:
А
Lactose
B
Maltose
C
Fructose
D
Sucralose

Answers

A. Lactose because the rest are all sugars

4. Triangle ABC with vertices A(2,3), B(5,8), and C(9,2) is graphed on the coordinate plane below.
Which equation represents the altitude of Triangle ABC from vertex B?

Answers

Answer:

y = 7x-27

Step-by-step explanation:

Adan has 1/4 quart of milk. If he pours the same amount of milk into 3 glasses, each glass will contain ___ qaurt of milk

Answers

Answer:

each glass would contain 1/12 quart of milk

Step-by-step explanation:

1/4 divided by 3 is 1/12, so each glass would contain 1/12 quart of milk

PLEASE HELP!
Marius and his dad build a lamp in the shape
of a triangular prism, open on the top and
bottom
18 in.
20.1 in.
22 in.
18 in
18 in.
How many square inches of canvas did Marius
and his dad use to make the lamp?

Answers

Answer:

≈ 1468.59223 in squared

Step-by-step explanation:

1) A=2AB+(a+b+c)h

2) AB= square root of s(s﹣a)(s﹣b)(s﹣c)

3) s=a+b+c / 2

4) A=ah+bh+ch+1 / 2 square root of﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4

5) 18·22+18·22+18·22+1 / 2 x the square root of ﹣184+2·(18·18)2+2·(18·18)2﹣184+2·(18·18)2﹣184≈1468.59223

≈ 1468.59223 in squared

Hope this helps :)

PLZ HELP

How many solutions does the equation −5a + 5a + 8 = 8 have? (5 points)

a
None

b
One

c
Two

d
Infinitely many

Answers

Answer:

d) Infinitely many

Step-by-step explanation:

−5a + 5a + 8 = 8

8 = 8

Since this is an identity solution, that means it's infinitely many.

Answer:

a none

Step-by-step explanation:

please mark this answer as brainliest

What is the median? 4,5,6,2,2,6,7,8,6​

Answers

Answer:

2

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

what is the average value of 3+9=12​

Answers

Answer:

the mean (average) is 6 bc you divide the answer by the amount of numbers

Step-by-step explanation:

9/2 - 23/9=? plss help ​

Answers

Answer:

35/ 18

(Decimal: 1.944444)

Step-by-step explanation:

Answer

Step-by-step explanation:35/18

Which boxplot represents the data?
35, 60, 20, 80, 95, 15, 40, 85,

Answers

87.5 (if you get it wrong I’m sorry I haven’t done this in awhile)

Al cine paraíso fueron el sábado 1.350 espectadores y el domingo 1.120 cuánto se recaudo si cada entrada costaba 540?

Answers

Answer:

1,333,800

Step-by-step explanation:

Spectators on Saturday = 1,350

Spectators on Sunday = 1,120

Total spectators = 1,350 + 1,120 = 2,470

Price per ticket = 540

So, we can calculate the total amount collected by using following formula,

Total amount collected = Total spectators × Price per ticket

By putting value, we get

= 2,470 × 540

= 1,333,800

Un metro cúbico equivale a 1000 litros de capacidad y un decímetro cúbico a un litro ¿Cuántos litros cabrán en una piscina de 12,5 metros cúbicos?

Answers

Answer:

12,500 liters

Step-by-step explanation:

Given that

One cubic meter = 1000 liters

One cubic decimeter = 1 liter

We need to find out the number of liters fit in a 12.5 cubic meter

So

As it is mentioned that

One cubic meter = 1000 liters

So for 12.5 cubic meter

The number of liters would be

= 1000 × 12.5

= 12,500 liters

Find the value of unknown anlges from the figure.​

Answers

X would equal 30 because if you plug 30 into the equation you would get 180. X=30

simplify 3/x-1 + 1/x-2

Answers

Answer:

4-3x over x or 4-3x/x

I'm not sure. but I hope it can help you:))

Triangle ABC with vertices A(-3, 4), B(0, 2),
and C(-2, 1) is translated 4 units right and 5
units down. Which quadrant is the image?

Answers

A(-3, -1)

B(0, -7)

C(-2, -4)

Therefore, the image is in the III quadrant (bottom left).

Im very confused and need help

Answers

Answer:

B $572

Step-by-step explanation:

$75+$150+$262+$85=$572

Can someone please help me please help me I really really need help.

Answers

Answer:

See attached

Step-by-step explanation:

Solution is in the attached picture

Find the measure of arc DB in OP.
mDB=

Answers

Answer:

90

Step-by-step explanation:

First of all you have to know that when 2 lines are perpendicular to each other,they produce a 90° angle, therefore DP||TD. Then you should remember that the measure of an arc is the same as the measure of the angle. So angle DB is 90°.

How many four-letter codes can be made if no letter can be used twice?

Answers

There are 26 letters in the alphabet.

1st letter can be 1 of 26

2nd letter can be 1 of 25

3rd letter can be 1 of 24

4th letter can be 1 of 23

Total combinations = 26 x 25 x 24 x 23 = 358,800

Answer:

solution given:

total alphabet =26

The first letter can be any one of the 26 letters in the alphabet.

so

1st word =26letter

since no word is repeated

2nd word =25letter

3rd word=24letter

4th word=23letter

so

four-letter code =26×25×25×23=358800codes

so

358800codes of four-letter codes can be made if no letter can be used twice.

I need a answer fast pls help

Answers

the radius is 2.5 all you had to do was divide 5 by 2 lol

Answer:

2.5

Step-by-step explanation:

The radius is any line from the middle of the circle to the end of the circle. The diameter is a chord which is a line going from any end of the circle to the other end but the diameter crosses though the point which is in the middle.

So, you split the diameter in half. 5/2 = 2.5

What is the probability of flipping a coin 7 times and getting heads 5 times? Round your answer to the nearest tenth of a percent.

Answers

For a fair coin,
Probability of a head, P(H) = 1/2 = 0.5
Probability of a tail , P(T) = 1/2 = 0.5
The number of possible outcomes is small enough to simply list the outcome:
The possible outcomes of flipping a coin 7 times and getting heads 6 times are these 7 possibilities:
THHHHHH
HTHHHHH
HHTHHHH
HHHTHHH
HHHHTHH
HHHHHTH
HHHHHHT
The probability of EACH of the above outcomes is
= (0.5)(0.5)(0.5)(0.5)(0.5)(0.5)(0.5)
= (0.5)⁷
Since there are 7 possibilities and since the probabilities of every outcome is identical, the probability of rolling the 7 outcomes is,
= 7 x probability of each outcome
= 7 x (0.5)⁷
= 0.5468
= 5.468%
= 5.5% (nearest tenth)

Simplify the following:

(8p−2)(6p+2)

Answers

Answer:

48p^2 +4p-4

Step-by-step explanation:

Use Foil Method

First: 8p*6p=48p^2

Outsides: 8p*2=16p

Insides: -2*6p=-12p

Lasts: -2* 2=-4

simplify:

48p^2 +16p - 12p -4

ANSWER 48p^2 +4p-4

Have a great day!

Answer:

Therefore the answer is

[tex]48p^{2} + 4p - 4[/tex]

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