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A brick company found that 4% of its bricks are defective. If 400 bricks are checked at random, what is the probability that there are more than 18

A brick company found that 4% of its bricks are defective. If 400 bricks are checked at random, what is the probability that there are more than 18 defective bricks? Use the normal approximation to the binomial.

a. .2389

b..2611

.c .3520

d.4364

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