uel economy estmaies fof automöbiles built one year predicted a mean of 25 8 mpg

Question

uel economy estmaies fof automöbiles built one year predicted a mean of 25 8 mpg and a standard deviation of 7.2 mpg for highway drivin ) In what interval would you expect the central 99 7% of autos to be found? sing the 68 9599 7 rule, the central 997% of autos can be expected to be found in the interval from o not round Type integers or decimals) 4 to 40 mpg )About what percent of autos should get more than 33 mpg? sing the 68-95-99 7 rule, about 16 % of autos should get more than 33 mpg Do not round Type an integer or a decimal.) ) About what percent of autos should get between 33 and 40.2 mpg? ising the 68-95-99 7 rule, about [135]% of autos should get between 33 and 40 2 mpg Do not round Type an integer or a decimal.) e) Describe the gas mileage of the worst 2 5% of cars Choose the correct answer below O A. They get less than 18 6 mpg O B. They get less than 114 mp O C. They get more than 33 mpg D. They get less than 4 2 mpg Click to select your answer(s)

Explanation / Answer

B)

the bottom 99.7% line is taken for this approximation

99.7% lies between 4.2 and 47.4

C and D are correct

e)

From approximation worst 2.5 are which are lie less than 11.4

so option B is correct

They get less than 11.4 mpg

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