Students at a major university are complaining of a serious housing crunch. Many of the university's students, they complain, have to commute too far to school because there is not enough housing near campus. The university officials respond with the following information: the mean distance commuted to school by students is

17.2

miles, and the standard deviation of the distance commuted is3.6

miles.Assuming that the university officials' information is correct, complete the following statements about the distribution of commute distances for students at this university.

(a)According to Chebyshev's theorem, at least84

%

of the commute distances lie betweenmiles and

miles.

(Round your answer to 1 decimal place.)

(b)According to Chebyshev's theorem, at least(Choose one)of the commute distances lie between10.0

miles and24.4

miles.