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# Finding Standard Deviation from a Frequency Distribution.

ISBN: 9780321836960 18

## Solution for problem 37BSC Chapter 3.3

Elementary Statistics | 12th Edition

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Problem 37BSC

Finding Standard Deviation from a Frequency Distribution. In Exercises,find the standard deviation of sample data summarized in a frequency distribution table by using the formula befaw, where x represents the class midpoint, f represents the class frequency, and n represents the total number ofsamph values. Aho, compare the computed standard deviations to these standard deviations obtained by using Formula 3-4 with the original list of data values. 11.1 years.

 Age of Best Actress When Oscar Was Won Frequency 20–29 27 30–39 34 40–49 13 50–59 2 60–69 4 70–79 1 80–89 1
Step-by-Step Solution:
Step 1 of 3

Problem 37BSC

Step1 of 3:

We have standard deviation for frequency distribution

s =

Where,

x  represents the class midpoint,

f   represents the class frequency, and

n  represents the total number of sample values.

 Age of Best Actress When Oscar Was Won Frequency 20–29 27 30–39 34 40–49 13 50–59 2 60–69 4 70–79 1 80–89 1

Step2 of 3:

We need to find the standard deviation of sample data summarized in a frequency distribution table by using the formula below,also, compare the computed standard deviations to these standard deviations obtained by using Formula 3-4 with the original list of data values. 11.1 years.

Step3 of 3:

Consider,

...
 Age of Best Actress When Oscar Was Won Frequency     (f) Mid point(x) x2 fx2 fx 20–29 27 24.5 600.25 16206.75 661.5 30–39 34 =34.5 1190.25 40468.5 1173 40–49 13 44.5 1980.25 25743.25 578.5 50–59 2 =54.5
Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

Elementary Statistics was written by and is associated to the ISBN: 9780321836960. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. The full step-by-step solution to problem: 37BSC from chapter: 3.3 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. Since the solution to 37BSC from 3.3 chapter was answered, more than 316 students have viewed the full step-by-step answer. This full solution covers the following key subjects: frequency, standard, represents, formula, values. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. The answer to “Finding Standard Deviation from a Frequency Distribution. In Exercises,find the standard deviation of sample data summarized in a frequency distribution table by using the formula befaw, where x represents the class midpoint, f represents the class frequency, and n represents the total number ofsamph values. Aho, compare the computed standard deviations to these standard deviations obtained by using Formula 3-4 with the original list of data values. 11.1 years. Age of Best Actress When Oscar Was WonFrequency20–292730–393440–491350–59260–69470–79180–891” is broken down into a number of easy to follow steps, and 77 words.

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