Imagine that you have collected the following set of IQ scores:
|
110
|
124
|
100
|
125
|
104
|
119
|
|
98
|
130
|
76
|
95
|
143
|
90
|
|
132
|
102
|
125
|
96
|
99
|
78
|
|
100
|
80
|
112
|
112
|
103
|
88
|
|
94
|
108
|
88
|
132
|
87
|
119
|
|
109
|
104
|
104
|
100
|
119
|
99
|
|
135
|
128
|
92
|
110
|
90
|
92
|
|
120
|
95
|
110
|
78
|
|
|
a. Construct a simple frequency distribution of these scores.
b. Construct a grouped frequency distribution of these scores that includes both frequencies and relative frequencies.
c. Construct a frequency polygon, using the grouped frequency data.
d. Find the mean, median, and mode of the data. Does one of these measures of central tendency represent the data better than the others do?