Basic Practice of Statistics (Instructor's)
Basic Practice of Statistics (Instructor's)
8th Edition
ISBN: 9781319057923
Author: Moore
Publisher: MAC HIGHER
Question
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Chapter 2, Problem 2.15CYS
To determine

To obtain: The mean of the data

Expert Solution & Answer
Check Mark

Answer to Problem 2.15CYS

The correct option is (a) 281.60.

Explanation of Solution

Reason for correct answer:

Mean:

x¯=(311+254+297+260+323+242+300+252+303+274)10=281610=281.6

Thus, the value of mean is 281.6.

Reason for incorrect answer:

The options (b) 282.50 and (c) 285.50 are wrong because it doesn’t match with the calculated mean value.

Conclusion:

The mean is 281.6.

Statistics Concept Introduction

Introduction:

Mean:

Sum of the observations is divided by the number of observations.

The formula for mean is,

x¯=xin

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