5. On this assignment, round all answers (when necessary) to exactly three decimal places. The numbers of construction workers for various projects are 32 20 25 52 16 21 28 35 23 41 46 17 23 27 11 60 The standard deviation of this data is

5. On this assignment, round all answers (when necessary) to exactly three decimal places. The numbers of construction workers for various projects are 32 20 25 52 16 21 28 35 23 41 46 17 23 27 11 60 The standard deviation of this data is

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

5. On this assignment, round all answers (when necessary) to exactly three decimal places.
The numbers of construction workers for various projects are 32 20 25 52 16 21 28 35 23 41 46 17 23 27 11 60

The standard deviation of this data is

Expert Solution

Step 1

Solution: Given data

x	dx=x-A=x-30	dx2
32	2	4
20	-10	100
25	-5	25
52	22	484
16	-14	196
21	-9	81
28	-2	4
35	5	25
23	-7	49
41	11	121
46	16	256
17	-13	169
23	-7	49
27	-3	9
11	-19	361
60	30	900
---	---	---
∑x=477	∑(dx)=-3	∑(dx)2=2833

Mean ˉx=∑x/n

=477/16

=29.8125

ˉx=29.8125 is not an integer, use assumed mean method

A=30

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