3 years ago

Bought a box 6 in long, 10 in wide and 4 in high. How much would it cost to cover with material that cost $0.25 per square in?

1 answer:

german3 years ago

6 0

Multiply 6x10x4 to find the volume. Which equals 240. That's 240 square inches. Multiply 240 by 0.25 and you get the cost.

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Answer:

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We can model the number of defective sets in the group of TV sets (variable x) as a binomial variable, with sample size=3 and probability of success p=2/7≈0.2857.

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$P(x=k) = \dbinom{n}{k} p^{k}q^{n-k}$

So, we have this probabilty distribution for x:

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