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A recent survey determine the IQ score of a random selection of residents of Alaska. The accompanying relative frequency distri...Question
A recent survey determined the IQ score of a random selection of residents of Alaska. The accompanying relative frequency distribution table summarizes the results.
Identify the class width for the given relative frequency distribution.
IQ Score
Relative Frequency
50–69
5%
70–89
23%
90–109
46%
110–129
19%
130–149
7%
(1 point)
19
20
19.5
Identify the class width for the given relative frequency distribution.
IQ Score
Relative Frequency
50–69
5%
70–89
23%
90–109
46%
110–129
19%
130–149
7%
(1 point)
19
20
19.5
Answers
PsyDAG
The “class width” is the distance between the lower limits of consecutive classes.
Kay
20