d) About what percent of autos should get between 31.00 and 37.19 mpg? Using the 68-95-99.7 Rule, about% of autos should get between 31.00 and 37.19 mpg. (Type an integer or a decimal. Do not round.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.3: Measures Of Spread
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Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested recently predicted a
mean of 24.81 mpg and a standard deviation of 6.19 mpg for highway driving. Assume that a Normal model can be
applied. Use the 68-95-99.7 Rule to complete parts a through e.
O C.
68%
95%
99.7%
- 12.33 0.05 12.43 24.81 37.19 49.57 61.95
...
D.
68%
95%
99.7%
15.53 18.62 21.72 24.81 27.91 31.00 34.10
b) In what interval would you expect the central 95% of autos to be found?
Using the 68-95-99.7 Rule, the central 95% of autos can be expected to be found in the interval from 12.43 to 37.19
mpg.
(Type integers or decimals. Do not round. Use ascending order.)
c) About what percent of autos should get more than 31.00 mpg?
Using the 68-95-99.7 Rule, about 16% of autos should get more than 31.00 mpg.
(Type an integer or a decimal. Do not round.)
d) About what percent of autos should get between 31.00 and 37.19 mpg?
Using the 68-95-99.7 Rule, about% of autos should get between 31.00 and 37.19 mpg.
(Type an integer or a decimal. Do not round.)
Transcribed Image Text:Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested recently predicted a mean of 24.81 mpg and a standard deviation of 6.19 mpg for highway driving. Assume that a Normal model can be applied. Use the 68-95-99.7 Rule to complete parts a through e. O C. 68% 95% 99.7% - 12.33 0.05 12.43 24.81 37.19 49.57 61.95 ... D. 68% 95% 99.7% 15.53 18.62 21.72 24.81 27.91 31.00 34.10 b) In what interval would you expect the central 95% of autos to be found? Using the 68-95-99.7 Rule, the central 95% of autos can be expected to be found in the interval from 12.43 to 37.19 mpg. (Type integers or decimals. Do not round. Use ascending order.) c) About what percent of autos should get more than 31.00 mpg? Using the 68-95-99.7 Rule, about 16% of autos should get more than 31.00 mpg. (Type an integer or a decimal. Do not round.) d) About what percent of autos should get between 31.00 and 37.19 mpg? Using the 68-95-99.7 Rule, about% of autos should get between 31.00 and 37.19 mpg. (Type an integer or a decimal. Do not round.)
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