Practice exercises

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MATH 110 Sec 14.2 Statistics-Measures of Central Tendency Practice Exercises
Given the dataset:
3 7 2 5 3 7 7 5 1 8 8 9 5 1
Calculate the mean. (Round answer to nearest hundredth.)
MATH 110 Sec 14.2 Statistics-Measures of Central Tendency Practice Exercises
Given the dataset:
3 7 2 5 3 7 7 5 1 8 8 9 5 1
Calculate the median.
MATH 110 Sec 14.2 Statistics-Measures of Central Tendency Practice Exercises
Given the dataset:
3 7 2 5 3 7 7 5 1 8 8 9 5 1
Calculate the mode.
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
Find the mode of the data in the
x
Frequency (f)
frequency table.
2
3
4
2
5
7
8
2
1
4
11
2
13
1
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
Find the median of the data in the
x
Frequency (f)
frequency table.
2
3
4
2
5
7
8
2
1
4
11
2
13
1
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
Find the mean of the data in the
x
Frequency (f)
frequency table.
2
3
4
2
5
7
8
2
1
4
11
2
13
1
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
Use the given graph to find the mean for
the data represented in the bar
graph.(Round answer to nearest tenth.)
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
Use the given graph to find the median
for the data represented in the bar
graph. (Write answer as an integer or
decimal as needed.)
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
Use the given graph to find the mode for
the data represented in the bar graph.
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
Give the Five-number summary and draw a box-and-whisker plot.
13 23 24 15 25 33 45 17 42 25 35 37 49 42 54
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
The mean number of hours that Ramone worked over the past four
weeks is 39.75. If he works 41 hours this week, what will the mean
number of hours be that he will have worked over the 5-week period?
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
To get a B in math, Alexandria must average an 80 on four tests.
Scores on her first three tests were 60, 80 and 90. What is the lowest
score on test 4 she can get to get the B? (The score must be an integer.)
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
Which is the box-and-whisker plot for the data presented in the graph?
MATH 110 Sec 14-2 Lecture: Statistics-Measures of Central Tendency
A college placement office made a
comparative study of starting
salaries for graduates in various
majors. The following box-andwhisker plot describes the starting
salaries for business, education,
engineering and liberal arts. Which
major, in general, receives the
worst salary offers?
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