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WorksheetsChapter 11: Statistical Measures
Total questions: 20
Worksheet time: 10mins
Find the mean of {3, 8, 10, 1, 25}.
1
9.4
8
9
The heights in inches of 10 senior boys are 64, 65, 66, 68, 71, 72, 73, 73, 73, and 74. Find the mean of the heights.
69.9 in.
70 in.
69.7 in.
69.8 in.
Find the mean for the data set 99, 103, 140, 153, 109, 92, 125, 110, 140.
61
119
110
140
Mary Jo wants to find the average of her friend's weekly allowances. Use the table below, and find the mean weekly allowance.
$5
$12.50
$7.50
$10
Find the mode of the set of data.
24, 25, 30, 31, 31, 33, 34, 38, 41, 42, 44, 48, 49, 67
67
31
34
36
Find the median for the data set 2, 3, 5, 7, 9, 10, 12, 15.
8
10
7
9
The table below shows the amount that Gabriel and his friends spend on lunch on a typical day. Find the median of the set of data.
$1.50
$3.25
$2.75
$2.10
Find the mean, median, and mode of $32, $37, $20, $26, $42, $39, $26, $34, respectively.
$34; $33; $26
$32; $33; $26
$32; $32; $26
$34; $32; $26
Find the range of the data set 145, 612, 120, 349, 515, 212, 590.
512
470
445
492
The price for packs of bottled water at a grocery store over a nine week period was as follows: $3.25, $3.00, $3.50, $3.75, $3.25, $3.00, $2.50, $3.00, $2.75. Find the lower quartile rounded to the penny.
$2.75
$3.00
$2.88
$3.38
Find the interquartile range of the data.
68, 15, 55, 5, 66, 42, 51, 12, 23
47
42
63
60.5
Find all outliers for the data.
20, 16, 8, 12, 6, 31, 15, 14
none
6 and 31
31
6
What does the mean absolute deviation of a set of data represent?
the average of the modes of a set of data
the mean of the lower quartile and the upper quartile of a set of data
the average distance between each data value and the mean
the difference between the greatest value and least value in the data set
Find the mean absolute deviation for the data in the table. Round to the nearest tenth if necessary.
1.4
1.2
2.1
1.6
Find the mean absolute deviation for the data in the table. Round to the nearest tenth if necessary.
2
2.5
1.8
3
Find the mean absolute deviation for the data in the table. Round to the nearest tenth if necessary.
6
6.3
6.5
5.8
Refer to the set of data below. If 15 were removed from the set of data, which values would change?
range
mean, median, and range
range and mean
mode
Which measure of central tendency is most representative of the data?
6, 8, 3, 5, 32, 6, 5, 4, 28, 2, 2, 2
range
mode
median
mean
Which measure of central tendency is most representative of the data?
1, 3, 17, 20, 4, 3, 18, 1, 2, 19
range
mean
median
mode
Which measures of central tendency are representative of the data?
15, 10, 13, 20, 152, 18, 8, 5, 13
median and mode
mean, median, and mode
mean and median
mean and mode
