The miles per gallon (mpg) for each of 20 medium-sized cars selected from a production line during the month of March are given below. 21.1 19.3 21.6 21.7 18.2 22.4 23.3 25.0 22.7 20.7 24.2 21.2 23.9 22.7 22.4 22.2 22.9 20.2 20.9 22.6 (a) What are the maximum and minimum miles per gallon? mpg ] mpg maximum minimum What is the range (in mpg)? mpg (b) Construct a relative frequency histogram for these data. Relative Relative Relative Relative Frequency Frequency Frequency Frequency 0.30 0.30 0.30 0.25 0.30 0.25 0.25 0.25 0.20 0.20 0.20 0.20 0.15 0.15 0.15 0.15 0.10 0.10 0.10 0.10 0.05 0.00 0.05 0.05 0.05 0.00 18 19 20 21 22 23 24 25 0.00 18 19 20 21 22 23 24 25 0.00 mpg 18 19 20 21 22 23 24 25 mpg mpg mpg 18 19 20 21 22 23 24 25 How would you describe the shape of the distribution? O The distribution is slightly skewed to the left. O The distribution is slightly skewed to the right. O The distribuution is himodal.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.2: Proportions
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The miles per gallon (mpg) for each of 20 medium-sized cars selected from a production line during the month of March are given below.
21.1
19.3
21.6
21.7
18.2 22.4
23.3
25.0
22.7
20.7
24.2
21.2
23.9
22.7
22.4 22.2
22.9 20.2 20.9 | 22.6
(a) What are the maximum and minimum miles per gallon?
maximum
mpg
minimum
mpg
What is the range (in mpg)?
|mpg
(b) Construct a relative frequency histogram for these data.
Relative
Relative
Relative
Relative
Frequency
Frequency
Frequency
Frequency
0.30
0.30|
0.30
0.30
0.25
0.25
0.25
0.25
0.20
0.20
0.20
0.20
0.15
0.15
0.15
0.15
0.10
0.10
0.10
0.10
0.05
0.05
0.05
0.05
0.00
mpg
0.00
mpg
0.00
mpg
0.00
mpg
18 19 20 21 22 23 24 25
18 19 20 21 22 23 24 25
18 19 20 21
22 23 24 25
18
19 20 21 22 23
24 25
How would you describe the shape of the distribution?
O The distribution is slightly skewed to the left.
O The distribution is slightly skewed to the right.
O The distribution is bimodal.
Transcribed Image Text:The miles per gallon (mpg) for each of 20 medium-sized cars selected from a production line during the month of March are given below. 21.1 19.3 21.6 21.7 18.2 22.4 23.3 25.0 22.7 20.7 24.2 21.2 23.9 22.7 22.4 22.2 22.9 20.2 20.9 | 22.6 (a) What are the maximum and minimum miles per gallon? maximum mpg minimum mpg What is the range (in mpg)? |mpg (b) Construct a relative frequency histogram for these data. Relative Relative Relative Relative Frequency Frequency Frequency Frequency 0.30 0.30| 0.30 0.30 0.25 0.25 0.25 0.25 0.20 0.20 0.20 0.20 0.15 0.15 0.15 0.15 0.10 0.10 0.10 0.10 0.05 0.05 0.05 0.05 0.00 mpg 0.00 mpg 0.00 mpg 0.00 mpg 18 19 20 21 22 23 24 25 18 19 20 21 22 23 24 25 18 19 20 21 22 23 24 25 18 19 20 21 22 23 24 25 How would you describe the shape of the distribution? O The distribution is slightly skewed to the left. O The distribution is slightly skewed to the right. O The distribution is bimodal.
23.9
22.7 22.4
22.2
22.9
20.2
20.9
22.6
(a) what are the maximum and minimum miles per gallon?
maximum
mpg
minimum
mpg
What is the range (in mpg)?
mpg
(b) Construct a relative frequency histogram for these data.
Relative
Relative
Relative
Relative
Frequency
Frequency
Frequency
Frequency
0.30
0.30
0.30
0.30
0.25
0.25
0.25
0.25
0.20
0.20
0.20
0.20
0.15
0.15
0.15
0.15
0.10
0.10
0.10
0.10
0.05
0.05
0.05
0.05
0.00
18 19 20 21 22 23 24 25
0.00
mpg
0.00
mpg
0.00
mpg
mpg
18 19 20 21 22 23 24 25
18 19 20 21 22 23 24 25
18 19 20 21 22 23 24 25
How would you describe the shape of the distribution?
O The distribution is slightly skewed to the left.
O The distribution is slightly skewed to the right.
O The distribution is bimodal.
The distribution is mound-shaped.
(c) Find the mean (in mpg).
mpg
Find the standard deviation (in mpg). (Round your answer to three decimal places.)
mpg
Transcribed Image Text:23.9 22.7 22.4 22.2 22.9 20.2 20.9 22.6 (a) what are the maximum and minimum miles per gallon? maximum mpg minimum mpg What is the range (in mpg)? mpg (b) Construct a relative frequency histogram for these data. Relative Relative Relative Relative Frequency Frequency Frequency Frequency 0.30 0.30 0.30 0.30 0.25 0.25 0.25 0.25 0.20 0.20 0.20 0.20 0.15 0.15 0.15 0.15 0.10 0.10 0.10 0.10 0.05 0.05 0.05 0.05 0.00 18 19 20 21 22 23 24 25 0.00 mpg 0.00 mpg 0.00 mpg mpg 18 19 20 21 22 23 24 25 18 19 20 21 22 23 24 25 18 19 20 21 22 23 24 25 How would you describe the shape of the distribution? O The distribution is slightly skewed to the left. O The distribution is slightly skewed to the right. O The distribution is bimodal. The distribution is mound-shaped. (c) Find the mean (in mpg). mpg Find the standard deviation (in mpg). (Round your answer to three decimal places.) mpg
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