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Essentials of Statistics for The B...

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

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Chapter
Section
BuyFindarrow_forward

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:

  1. a. ΣX
  2. b.X)2
  3. c. ΣX2
  4. d. Σ(X +3)

    images

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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