Tanner walks north at 2.5 mph with a receiver and sheldon walks east at 3 mph with a receiver. how long will they be able to talk to each other if the range of communications range is 4 miles

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 answer is c hope this

i would say c

step-by-step explanation: