   Chapter 1, Problem 20P Essentials of Statistics for The B...

9th Edition
Frederick J Gravetter + 2 others
ISBN: 9781337098120

Solutions

Chapter
Section Essentials of Statistics for The B...

9th Edition
Frederick J Gravetter + 2 others
ISBN: 9781337098120
Textbook Problem

For the following set of scores, find the value of each expression: a. ΣX b. (ΣX)2 c. ΣX2 d. Σ(X +3) a.

To determine

To Find: The value of X .

Explanation

Given info:

The values of scores X are –2, –2, 7, –3 and –1.

Calculation:

X represents first scores and X represents the sum of scores.

Software procedure:

Step-by-step procedure to obtain the X using the SPSS software:

• Go to Variable View> Enter the name of the variable as X.
• Go to Data View>Enter the values of X.
• Choose Analyze > Descriptive Statistics> choose Descriptive.
• Select X and move it under variable(s)>Choose Options>Select Sum

b.

To determine

To Find: The value of (X)2 .

c.

To determine

To Find: The value of X2 .

d.

To determine

To Find: The value of (X+3) .

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