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A bank has kept records for several years on the number of people in line on Fridays at 3 p.m., as presented in the probability distribution below.

X 0 1 2 3 4
P(X) 0.1 0.3 0.4 0.1 0.1



What is the probability that on any given Friday at 3 p.m. there will be at most $3$ people waiting in line?

A

$0.1$

B

$0.3$

C

$0.5$

D

$0.8$

E

$0.9$

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