Final answer:
According to Chebyshev's theorem, at least 75% of the fares will lie between $21.97 and $34.25, and at least 89% of the fares will be between $19.97 and $37.25.
Step-by-step explanation:
A) According to Chebyshev's theorem, at least 75% of the fares will lie between $21.97 and $34.25.
B) According to Chebyshev's theorem, at least 89% of the fares will be between $19.97 and $37.25.
The Chebyshev's theorem states that for any distribution, the proportion of data within k standard deviations of the mean is at least 1 - (1/k^2), where k is any positive number greater than 1. In this case, we can use k = 2 to find the range of fares.