In a drug trial, researchers found that some patients suffered side effects. 40% suffered headaches, 25% suffered dizziness, and 10% suffered both dizziness and headaches. What percent of the patients suffered headaches or dizziness?

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

the correct answers i think are b. and d.

give me brainliest if it is correct!

answer: 0.64

step-by-step explanation: