Chapter 2

Question 1

scores we initially measure

Answer 1

raw scores

Question 2

number of x score occur in a set of data

Answer 2

frequency

Question 3

organizes scores based on each score’s frequency

Answer 3

frequency distribution

Question 4

total number of scores in data

Answer 4

N

Question 5

on a frequency distribution graph, frequency is on the ___ axis

Answer 5

y

Question 6

on a frequency distribution graph, the scores are on the ____ axis

Answer 6

x

Question 7

a nominal/ordinal scale has a ____ graph

Answer 7

bar

Question 8

a interval/ratio scale can have a ____ or ____ graph

Answer 8

histogram polygon

Question 9

bell curve, symmetrical

Answer 9

normal distribution

Question 10

not symmetrical, one pronounced tail, neg/pos skewed

Answer 10

skewed distribution

Question 11

contains extreme low scores having low frequency, but does not contain low-frequency, extreme high scores

Answer 11

negatively skewed distribution

Question 12

contains extreme high scores having low frequency, but does not contain low-frequency, extreme low scores

Answer 12

positively skewed distribution

Question 13

is a symmetrical distribution containing two distinct humps

Answer 13

bimodal distribution

Question 14

is the proportion of the time a score occurs in a sample

Answer 14

relative frequency

Question 15

formula for relative frequency

Answer 15

f/N

Question 16

is the percent of all scores in the data at or below a score

Answer 16

percentile