Mean/Median/Mode/Range
List the 3 measures of center.
Mean, Median, and Mode.
Mean absolute deviation of a set of data describes the variation of the data values around the...
A) Median
B) Interquartile Range
C) Mean
D) Mode
C) Mean
Which set has the larger mode andby how much?
Set A: 12 10 9 15 16 10 12 10
Set B: 14 14 15 15 16 15 15 16 14
Set B, 5
What percent of the data lies within the interquartile range?
50%
What percent of the data lies between the 1st Quartile and the Upper Extreme?
75%
What is the range for data set B={32, 19, 74, 54, 60, 17, 82, 49, 29}?
What is 65?
You record the numbers of raisins in 6 scoops of cereal. Find the mean absolute deviation of the following data: 7, 6, 17, 8, 7, 9
2.67
Which set has the larger range and by how much?
Set A: 12 15 17 28 30
Set B: -12 -15 5 3 -2 0 -7
Set B, 2
What is the interquartile range of the following data: 20, 12, 8, 24, 15, 17, 11
9
Mr. Taylor raised all his students’ scores on a recent test by five points. How were the mean and the range of the scores affected?
A) The mean increased by five and the range increased by five.
B) The mean increased by five and the range remained the same.
C) The mean remained the same and the range increased by five.
D) The mean remained the same and the range remained the same.
What is Choice B?
What is the median for data set B={32, 19, 74, 54, 60, 17, 82, 49, 29}?
49
Find the mean absolute deviation of the following set of data: 23, 24, 22, 30, 25, 26, and 32. Round the answer to the nearest tenth.
What is 2.9?
Which set has the greater median, and by how much?
14 14 15 15 16 15 15 16
12 10 9 15 16 10
Set A, 4
What is the IQR for the following data set? A={3, 6, 5, 10, 15, 26,13, 15}
What is 9.5?
Find the mean, median, mode, and range
3 -12 -1 -7 -2 0 -5 -1 -4 -2
mean = -3.1
median = -2
mode = -1 and -2
range = 15
Find the mean, median and mode in the following test scores: 15, 16, 17, 17, 17, 17, 14, 15, 15, 16, 20, 21, 22, 22
What are Mean: 17.4 Median: 17 Mode: 17?
What is the M.A.D. for the following prices ($) for beach parking: 2.50, 3.75, 1.25, 2.25, 3.00 ?
$0.66
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Sarah is comparing the daily high temperatures in two cities.
Chicago, IL: 40, 39, 41, 38, 42, 44, 45, 37, 48, 46
San Francisco, CA: 59, 66, 57, 63, 67, 61, 70, 62, 61, 64
What is the interquartile range for Chicago, IL?
6
The lengths of the 5 long jumps at track practice were 14.5 feet, 13.7 feet, 14.1 feet, 14.9 feet, and 13.8 feet. What would the sixth length have to be to have a mean length of 14.1 feet?
13.6 feet
There are 5 tests in Barry's science class. He got a 78, 89, 63, and 82 on his first four tests. What score does Barry need to increase his average to 80?
88
Solve for the mean and M.A.D.
25, 24, 25, 23, 20, 18
mean = 22.5
M.A.D. = 2.33
Find the difference between the M.A.D.s
Set A = 10 7 13 10 8
Set B = 110 114 104 108 106
2.88 - 1.68
= 1.2
The ages of the members of the 2018 U.S. women’s wheelchair basketball team: 24, 30, 30, 22, 25, 22, 18, 25, 28, 30, 25, 27. Between what 2 ages do the youngest 25% of the team fall?
18 and 23
The following speeds were recorded from various cars on a busy street. Calculate the mean absolute deviation both with and without the data value of 55. Round to the nearest hundredth if necessary.
35 38 41 35 36 55
How does the variability change?
Mad with = 5.33
MAD without = 2
The variability is less than 1/2 without the 55.