PSY3204 Chapter 2 Quiz

"Brand of soft drink" is measured on a(n) ____.

nominal scale

At the annual sailing regatta, prizes are awarded for 1st, 2nd, 3rd, 4th, and 5th place. These "places" comprise a(n) ____.

ordinal scale

Reaction time in seconds is an example of a(n) ____ scale.

ratio

Exhibit 2-1 X1 = 1, X2 = 4, X3 = 5, X4 = 8, X5 = 10 Given the above data of Exhibit 2-1, evaluate S X2.

206

Exhibit 2-1 X1 = 1, X2 = 4, X3 = 5, X4 = 8, X5 = 10 Given the above data of Exhibit 2-1, evaluate S X.

28

The following problems are for your own use in evaluating your skills at elementary algebra. If you do not get all the problems correct you should probably review your algebra. Where 3X = 9, what is the value of X?

3

When rounded to two decimal places, the number 3.175000 becomes ____.

3.18

The following problems are for your own use in evaluating your skills at elementary algebra. If you do not get all the problems correct you should probably review your algebra. 1/X + 2/X equals ____.

3/X

What are the real limits of the observation of 6 seconds (measured to the nearest second)?

5.5-6.5

Exhibit 2-1 X1 = 1, X2 = 4, X3 = 5, X4 = 8, X5 = 10 Given the data of Exhibit 2-1, evaluate (S X)2.

784

Given the following subjects and scores, which symbol would be used to represent the score of 3? Subject 1 2 3 4 5 Score 12 21 8 3 30

X4

The following problems are for your own use in evaluating your skills at elementary algebra. If you do not get all the problems correct you should probably review your algebra. X = Y/Z can be expressed as ____.

Y = (Z)(X)

The following problems are for your own use in evaluating your skills at elementary algebra. If you do not get all the problems correct you should probably review your algebra. For X + Y = Z, X equals ____.

Z - Y

The following problems are for your own use in evaluating your skills at elementary algebra. If you do not get all the problems correct you should probably review your algebra. X(Z + Y) equals ____.

ZX + YX

Which of the following variables has been labeled with an incorrect measuring scale?

self-rating of anxiety level by students in a statistics class - ratio