Answer:
D
Step-by-step explanation:
The midpoint is the average of the 2 endpoints, that is
midpoint =
=
= 2.5 → D
なぜあなたはそれを翻訳するのですか、答えは2番目です???(:FOTOMATH;(
4000x.05x4=
15000x.08=
then the 2 answers you get just add them together

Explanation:
Since we have given that
The prices of three t-shirts styles i.e $24, $30, $36 with their probability is given by

As we know that,


Now,

and

So,

So, the expected value of a t-shirt = $31.
Answer:
i think its B or A
Step-by-step explanation: