Chapter 13 Question Preview (ID: 6838)


Basic Statistics. TEACHERS: click here for quick copy question ID numbers.

For the set of data 12, 13, 15, 15, 16, 19 determine the mean.
a) 13
b) 14
c) 15
d) 16

For the set of data 12, 13, 15, 15, 16, 19 determine the mode.
a) 13
b) 14
c) 15
d) 16

For the set of data 12, 13, 15, 15, 16, 19 determine the median.
a) 13
b) 14
c) 15
d) 16

For the set of data 12, 13, 15, 15, 16, 19 determine the range.
a) 31
b) 15.5
c) 10
d) 7

For the set of data 12, 13, 15, 15, 16, 19 determine the midrange.
a) 31
b) 15.5
c) 10
d) 7

For the set of data 12, 13, 15, 15, 16, 19 determine the midrange.
a) 2.45
b) 2.24
c) 1.414
d) 1.29

The average age of students at Tri-County Community College is normally distributed with a mean of 22.1 and a standard deviation of 2.3. What percent of students are between 20 and
a) 79.7%
b) 61.6%
c) 29.7%
d) 18.1%

The average age of students at Tri-County Community College is normally distributed with a mean of 22.1 and a standard deviation of 2.3. What percent of students are older than 23?
a) 34.8%
b) 39.1%
c) 60.9%
d) 65.2%

The average age of students at Tri-County Community College is normally distributed with a mean of 22.1 and a standard deviation of 2.3. What percent of students are older than 20.
a) 24.2%
b) 69.6%
c) 75.8%
d) 30.4%

The average age of students at Tri-County Community College is normally distributed with a mean of 22.1 and a standard deviation of 2.3. What percent of students are younger than 25.5?
a) 6.9%
b) 43.1%
c) 75.8%
d) 93.1%

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