Find the mean and the median of the data set. 31,32,36,31,30,35,33,30.

Answers

Answer 1

Answer:

Mean = 32.25

median = 31.5

Answer 2

Answer:

Median = 31.5

Mean  = 32.25

Step-by-step explanation:

Number of data = 8

Ascending order:

    30 , 30 , 31 , 31 , 32 ,  33 , 35, 36

Median = Average of 4th and 5th term

             = (31 + 32) / 2

              = 63/2

              = 31.5

Mean = Sum of all the observations /number of observations

         = (31 + 32 + 36 +31 + 30 + 35 + 33 +30) / 8

         = 258/8  

         = 32.25


Related Questions

Look at the long division problem shown on the right. Complete the division to determine what the remainder will be.

What is the remainder?

–10

–7

7

10
x + 4 StartLongDivisionSymbol 4 x Superscript 4 Baseline + 18 x cubed + 3 x squared minus 18 x + 15 EndLongDivisionSymbol. minus 4 x Superscript 4 Baseline + 16 x cubed to get a remainder of 0 x Superscript 4 Baseline + 2 x cubed + 3 x squared. minus 0 x Superscript 4 Baseline + 2 x cubed + 8 x squared to get a remainder of 0 x Superscript 4 Baseline + 0 x cubed minus 5 x squared minus 18 x. minus 0 x Superscript 4 Baseline + 0 x cubed minus 5 x squared minus 20 x to get a remainder of blank and a quotient of 4 x cubed + 2 x squared minus 5 x + c.

Answers

Answer:

The remainder is...

7

Hope this helps!!

Step-by-step explanation:

Answer: it’s c

Step-by-step explanation:

. Solve for x.
10xy=W

Answers

Answer:

x=W/10y

Step-by-step explanation:

1
After becoming completely blind at the age of
sixty-four, what did Leonhard Euler do?

Answers

Answer:

his remarkable mathematical flow continued without interruption – in fact, it increased.

Step-by-step explanation:

Find the quotient. 3,482 ÷ 9 = *

Answers

Answer:

386.8

Step-by-step explanation:

pretty sure thats it

Answer:

386.8888 .. ...

Step-by-step explanation:

3482/9

CAN SOMEONE PLS HELP
Which phrase best completes this table?
Table:
(Queen Hatshepsut's Accomplishments)
* Opened trade with many other regions
* Was only the second woman to rule Egypt
* ???????????

Options to choose from for the third one :

A. Gave women the same rights as men
B. Built many roads and temples
C. Made peace with the Hittites
D. Invaded the kingdoms of Punt and Somalia

Please help me I need an answer fast!
I REALLY NEED HELP

Answers

Answer:

B built many roads and temples

the largest negative integer is -1000​

Answers

Answer:

rlly

Step-by-step explanation:

disagree but yea sure

Marc has 3 fewer than 4 times the amount of ringtones than Melanie has. Write
an expression to show how many ringtones Marc has. Let r represent the
number of ringtones on Melanie's phone.

Answers

Answer:

4r-3

Step-by-step explanation:

3 fewer means subtracting 3 and 4 represents the r

Find the slope of the line passing through the points (-4,9) and (-4,-6).

Answers

Answer:

Indefinite answer

Step-by-step explanation:

Use formula

Y2 - y1 over x2 - x1

Guess what -4 - -4 gets cancelled and denominator becomes 0

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in California. Suppose that the mean income is found to be $22.4 for a random sample of 2128 people. Assume the population standard deviation is known to be $9.3. Construct the 98% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.

Answers

Answer:

[21.9, 22.9] in thousands of dollars

Step-by-step explanation:

The formula for Confidence Interval

= Mean ± z score × standard deviation/√n

Mean = $22.4

Standard deviation = $9.3

n = 2128

z score of 98% confidence interval = 2.326

Confidence Interval = 22.4 ± 2.326 × 9.3/√2128

= 22.4 ± 0.469

Confidence Interval =

22.4 - 0.469

= 21.931

≈ 21.9 in thousand of dollars

22.4 + 0.469

= 22.869

≈ 22.9 in thousands of dollars

Hence, the 98% confidence interval =

[21.9, 22.9] in thousands of dollars

us
Figure ABCD is a kite. Find the
value of x.
B
X + 20
X + 10
А
С
X = [?]
Enter

Answers

Answer:

x = 30

Step-by-step explanation:

Since this is a right triangle,

90 = (x + 20) + (x + 10)

90 = x + x + 20 + 10

90 = 2x + 30

90 - 30 = 2x

60 = 2x

60/2 = 2x/2

30 = x

Check:

x + 20

30 + 20 = 50

x + 10

30 + 10 = 40

50 + 40 = 90

Hope this helps!

what is the image of (6,-2) under the translation (x,y) (x-5,y-8)

Answers

the new point would then be at (1, -10)

BLINKS!! WHAT ALBUM SHOULD I GET
Theres more but not all fit in one pic ​

Answers

Answer: Idc u pick

Step-by-step explanation:

Answer:

square up

Step-by-step explanation:

its the best (blink fan for 3 years)

Please help i will give brainlest!​

Answers

Answer:

6×1+9×1/10+4×1/100+7×1/1000

Step-by-step explanation:

A rectangle a photo with dimension 3 inches wide by 4 inches long is enlarged to a length of 12 inches what is the width of the enlarged print

Answers

It should be 9 inches wide

This is one I’m stuck on

Answers

Answer:

1.109

2.264

3.462

Step-by-step explanation:

PLEASE ANSWER ME!
What is the result when the number 65 is increased by 53%?

Answers

Answer:

The result when 65 is increased by 53% is 34.45

Step-by-step explanation:

Hope this helps and have a great day :)

Answer:

34.45

Step-by-step explanation:

i hope you get it right

Please help it would mean alot!
Points and brinliast!

Answers

Answer:

Maybe because what about the other votes that were supposed to be left.

Step-by-step explanation:

What's the range of this function graph?
Question 3 options:

A)

(–∞,2)

B)

[2,∞)

C)

(–2,∞)

D)

[–2,∞]

Answers

Answer:

B [2,∞)

Step-by-step explanation:

Yesterday, the temperature in a city dropped from 9°C to –9°C, as shown below.



The expression 9 + (–18) represents the final temperature. Which of the following is an equivalent way to describe this temperature?

|–18| degrees in a negative direction from 9 degrees

|–18| degrees in a positive direction from 9 degrees

|–9| degrees in a negative direction from 9 degrees

|–9| degrees in a positive direction from 9 degrees

Answers

Answer:

b

Step-by-step explanation:

absoulute value is never negative.

help please 20 points to who answers not 10 points 20

Answers

Answer:

b c and a

Step-by-step explanation:

Answer:

A, B, C

Step-by-step explanation:

Help please it’s math

Answers

I’m pretty sure the one you have selected is correct sorry if I’m wrong but I just got out my calculator and did the squared root,Cubed root and divided and multiplied and I didn’t get any of those so I got 3.5 so I’m guessing it would be the smallest choice.

A basketball player averages 12,5 points per game. There are 24 games in a season. At this rate, how many points
would the player score in an entire season?
In the entire season, the basketball player would score
points.
✓ Done
Intro
15 of 15

Answers

Answer:

12.5 x 24=300

Step-by-step explanation:

Consider the following hypothesis test:
H0: µ = 20
Ha: µ < 20
A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2.
a. Compute the value of the test statistic (to 2 decimals).
b. What is the p-value (to 3 decimals)?
c. Using a = .05, can it be concluded that the population mean is less than 20?
d. Using a = .05, what is the critical value for the test statistic?
e. State the rejection rule: Reject H0 if z is the critical value.
f. Using a = .05, can it be concluded that the population mean is less than 20?

Answers

Answer:

a

 [tex]z = - 2.12[/tex]

b

 [tex]p- value = 0.017003[/tex]

c

There is sufficient evidence to show that the population mean is less than 20

d

 [tex]z_{0.05} =- 1.645[/tex]

e

   The decision rule is  

Reject the null hypothesis

f

The conclusion is  

  There is sufficient evidence to show that the population mean is less than 20.

Step-by-step explanation:

From the question we are told that

   The null hypothesis  is  [tex]H_o: \mu = 20[/tex]

    The alternative hypothesis is  Ha: µ < 20

    The sample size is  n  =  50  

    The sample mean is  [tex]\= x = 19.4[/tex]

    The level of significance is  [tex]\alpha = 0.05[/tex]

      The population standard deviation is  [tex]\sigma = 2[/tex]

Generally the test statistics is mathematically represented as

       [tex]z = \frac{\= x - \mu }{ \frac{\sigma }{ \sqrt{n} } }[/tex]

=>    [tex]z = \frac{19.4 - 20 }{ \frac{2}{ \sqrt{50 } } }[/tex]

=>    [tex]z = - 2.12[/tex]

From the z table  the area under the normal curve to the left corresponding to  -2.12  is  

       [tex](P< -2.12) = 0.017003[/tex]

Generally the p-value is  

        [tex]p- value = 0.017003[/tex]

From values obtained we see that [tex]p-value < \alpha[/tex] hence  

   The decision rule is  

Reject the null hypothesis

   The conclusion is  

  There is sufficient evidence to show that the population mean is less than 20.

Generally form the normal distribution table the critical value at a level of significance of  [tex]\alpha = 0.05[/tex] is

        [tex]z_{0.05} =- 1.645[/tex]

Generally given that  [tex]z < z_{0.05}[/tex]

   The decision rule is  

Reject the null hypothesis

   The conclusion is  

  There is sufficient evidence to show that the population mean is less than 20.

Which equation is equivalent to 3[x + 3(4x – 5)] = 15x – 24?
a.15x – 15 = 15x – 24
b.15x – 5 = 15x – 24
c.39x – 45 = 15x – 24
d.39x – 15 = 15x – 24

Answers

Answer: 39x-45=15x-24

Step-by-step explanation:

Do inside brackets first then simplify

PLEASEE HELPP WILL BRAINLIST why would the average rate of the change be equal to zero from x = -2 to x = 6?

Answers

Answer:

x=5

Step-by-step explanation:

I was working on this problem also.

Maybe my version will help, too.

You need to sketch f given the information you have.

f'(x) is approximately a a cubic polynomial which means f will look like a quartic (think W)

f slopes down (negative slope) to x=2 and then slopes down again...this is a horizontal tangent.

f then slopes down to to x=5 where is has a minimum and then slopes up.

if im not wrong

What is the decimal for this grid?
0.04
4.0
0.004

Answers

It’s 4.00 because the are 4 bar filled in out of ten but the must all equal 1

M



Can someone please help me!!

Answers

Answer:

64 is the measure of angle A.

Step-by-step explanation:

===================================================================

The triangle is an isosceles triangle, so when you use the supplementary theorem for angle BCA and 116, you get 64. And since the base pairs are equal, angle A is 64.

===================================================================

Answer:

m∠A = 64°

Step-by-step explanation:

If AB = BC , then ∠CAB ≅ ∠ACB

m∠ACB = 180° - 116° = 64° ⇒ m∠A = 64°

What is the slope of the line that passes through (0,0) (3,4)?

Answers

Answer:

M = 4/3 - c/3

Step-by-step explanation:

Answer:

4/3

Step-by-step explanation:

The slope formula is the difference in y over the difference in x, so 4-0/3-0.

8. Three gases found in Earth's atmosphere are carbon dioxide, nitrogen, and oxygen. What is their
order of abundance from greatest to least?
A. nitrogen, oxygen, carbon dioxide
B. nitrogen, carbon dioxide, oxygen
C. oxygen, nitrogen, carbon dioxide
D. carbon dioxide, oxygen, nitrogen

Answers

Answer:

carbon dioxide,oxygen,nitrogen

A city is approximately circular with a radius of 10.6 miles. Approximately 90,000 people live there. What is the population density of this city?

Answers

Answer:

513 people per square mile

Step-by-step explanation:

because

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