Find the expected value of the random variable with the
following probability distribution:
o
1
2
3
4
5
6
7
8
Р
.03
.15
.27
.20
.13
.10
.07
.03
.02
[?]

1

step-by-step explanation:

it's the only multiple of both and the least

i dont know sorry

step-by-step explanation:

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt