A teacher is monitoring how often students visit the website of the course during the day. She finds the following probability distribution. Find the expected number of visits to the course website.

visits(x) 0 1 2 3
probability 0.45 0.35 0.15 0.05

0.75
0.25
0.80
0.85

Option C: 0.80

Step-by-step explanation:

Expected number of visits, E(x) = ∑xp(x)

∑ = Summation

x = visits

p(x) = probability of a number of visits

E(x) = (0*0.45) + (1*0.35) + (2*0.15) +  (3*0.05)

E(x) = 0 + 0.35 + 0.30 + 0.15 = 0.80

a) 0

step-by-step explanation:

i^413 x i^0 = 0 as any number multiplied by a zero is

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step-by-step explanation: