Question

Calculate the mean and the standard deviation of the sample data below. Class Frequency 10 ext{--}16 1 17 ext{--}23 3 24 ext{--}30 12 31 ext{--}37 16 38 ext{--}44 5 45 ext{--}51 2 Round your answers to two decimal places. $ar{x} = 31.85$ $s = 7.29$

          Calculate the mean and the standard deviation of the sample data below.
Class
Frequency
10	ext{--}16
1
17	ext{--}23
3
24	ext{--}30
12
31	ext{--}37
16
38	ext{--}44
5
45	ext{--}51
2
Round your answers to two decimal places.
$ar{x} = 31.85$
$s = 7.29$

Calculate the mean and the standard deviation of the sample data below.
Class
Frequency
10 ext–16
1
17 ext–23
3
24 ext–30
12
31 ext–37
16
38 ext–44
5
45 ext–51
2
Round your answers to two decimal places.
arx = 31.85
s = 7.29

Added by Andrew N.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Madhur L

06/09/2023

Step 1

To find the midpoint of each class interval, we add the lower and upper limits of each interval and divide by 2. For example, the midpoint of the first interval (0-9) is (0+9)/2 = 4.5. We can create a table to organize this information: Class Interval Midpoint Show more…

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Thanks for your feedback!

Calculate the mean and the standard deviation of the sample data below Class Frequency 10 - 16 1 17 - 23 3 24 - 30 12 31 - 37 16 38 - 44 5 45 - 51 2 Round your answers to two decimal places. x̄ = 31.85 s = 7.29