Author Question: If nothing is known about the shape of a distribution, what percentage of the observations fall ... (Read 99 times)

haleyc112 · **on:** Jun 24, 2018

If nothing is known about the shape of a distribution, what percentage of the observations fall within 2 standard deviations of the mean?

A) at most 25 B) approximately 5
C) at least 75 D) approximately 95

Question 2

Mamma Temte bakes six pies each day at a cost of 2 each. On 19 of the days she sells only two pies. On 30 of the days, she sells 4 pies, and on the remaining 51 of the days, she sells all six pies. If Mama Temte sells her pies for 6 each, what is her expected profit for a day's worth of pies? Assume that any leftover pies are given away.

A) 15.84 B) 27.84 C) -7.36 D) -6.00