From a sample with

n=40,

the mean duration of a geyser's eruptions is

3.14

minutes and the standard deviation is

0.71

minutes. Using Chebychev's Theorem, determine at least how many of the eruptions lasted between

1.72

and

4.56

minutes.

Question content area bottom

Part 1

At least

enter your response here

of the eruptions lasted between

1.72

and

4.56

minutes.

(Simplify your answer.)