AnswersAlgebra D E-Learning Fall 2023 and beyondBasic Statistics

Measures of Center and Spread Answers

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Find the sample standard deviation and the population standard deviation of the data set.17, 37, 56, 16, 12, 16, 19, 45, 14, 37, 21, 26, 43, 46, 42a.c.b.d.

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2
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Which statement is not true about the data shown by the box plot below?

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A
Three fourths of the data is greater than 27.
B
The range is 30.
C
The data point 13 is the smallest element of the data.
D
Half the data lies between 27 and 57.
3

Which statement is not true about the data shown by the box plot below?

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A
The range is 67.
B
The data point 5 lies outside the range of the data.
C
Three fourths of the data is less than 68.
D
Half the data lies between 51 and 68.
4

Which is the population standard deviation of the data set: 8, 9, 10, 11, 12?

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10.123
B
2.654
C
1.414
D
10
5

The graph below represents the distribution of scores on a placement test for students at Central High School. Select the statement that is true about the distribution of scores. Placement Test Results

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A
The mode is the greater than the median.
B
There are two medians
C
The mode is less than the median.
D
The median and mode are the same.
6

Find the sample standard deviation and the population standard deviation of the data set.42, 49, 22, 36, 62, 23, 54, 23, 24, 22, 30, 23, 60, 49, 52a.c.b.d.

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D
7

The graph below represents the distribution of scores on a placement test for students at Central High School. Select the statement that is true about the distribution of scores.

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A
The median is the greater than the mode.
B
The median is the less than the mode.
C
The median and mode are the same.
D
The mean and mode are the same.
8

Which statement is not true about the data shown by the box plot below?

Question illustration
A
The median of the upper half of the data is 66.
B
The data point 30 is the smallest element of the data.
C
The median of the data is 58.
D
The interquartile range is 26.
9

Find the sample standard deviation and the population standard deviation of the data set.52, 19, 44, 49, 37, 46, 52, 36, 54, 13, 14, 17, 34, 16, 51a.c.b.d.

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10

Which statement is not true about the data shown by the box plot below?

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A
Half the data lies between 53 and 74.
B
The range is 57.
C
Three fourths of the data is greater than 65.
D
The median of the lower half of the data is 53.

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