Download 1. For the data: 16, 6, 10, 6, 16,... a. Mean b. Median

Measures of Central Tendency, Variability, Grouped Data and Cumulative Frequencies
1. For the data: 16, 6, 10, 6, 16, 6, 15, 19, 23, 5, 6, find the:
a. Mean
b. Median
c. Mode
d. Midrange
e. Range
f. MAD
g. Sample Standard Deviation
2. Here is a frequency distribution:
Score Classes
10 – 24
25 – 39
40 – 54
55 – 69
70 - 84
Total
Frequency (# of people)
15
20
27
13
15
90
Cumulative Frequency
a. Draw a frequency histogram of the data, showing the class boundaries as the
edges of your bars. You may also want to show the class marks.
b. Draw a cumulative frequency ogive of the data.
c. Find the mean of this grouped data. (You’ll need the class marks or midpoints.)
d. Find the sample standard deviation of this grouped data.