3/8 or .375 they are the same thing but that should be your answer
Expected value
E[x] = ∑ xP(x) = 50*0.4+100*0.6 = $80
The expected value of a prize is $80.
Answer: V≈1642 cm³.
Step-by-step explanation:
D=20 cm d=12 cm h=8 cm V=?
7.375 will be the notation of 7/38