Question

A clothing store owner has shirts on sale this weekend in three sizes: S, M, and L. She runs a simulation of 20 purchases to predict her customers' choices of sizes. Based on the simulated results, estimate the probability that someone will buy a medium size.

M L M L S L S S M M M L S L L L M M L S

0.333
0.300
0.350
0.700

Answer 1

There are 7 copies of "M" in the list of 20 letters shown.

So, 7/20 = 0.350 is the empirical probability of picking M.

Answer: Choice C) 0.350

Answer 2

0.35

Explanation:

No. of small sizes = 5

No. of medium sizes=7

No. of large sizes= 8

She runs a simulation of 20 purchases to predict her customers' choices of sizes

Now we are supposed to find the probability that someone will buy a medium size.

Probability that someone will buy a medium size=
`(7)/(20)`

=
`0.35`

Thus Option c is correct.

Hence the probability that someone will buy a medium size is 0.35.