A tailor charges set amounts for alterations on dresses and suits. One customer has 2 dresses and 1 suit altered for a total of $80.
Another customer has 1 dress and 3 suits altered for a total of $115.
How much does it cost to alter each dress?

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

i think the answer is true

step-by-step explanation: