3 years ago

Plz help me with this question

Mathematics

1 answer:

Monica [59]3 years ago

7 0

Answer:B

Step-by-step explanation:

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Answer: a) 0.8413, b) 0.9987.

Step-by-step explanation:

Since we have given that

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b) What is the probability that the heaviest brick in the sample exceeds 3.75 pounds?

$P(X>3.75)\\\\=P(z>\dfrac{3.75-3}{0.25})\\\\=P(z>\dfrac{0.75}{0.25})\\\\=P(z>3)\\\\=0.9987$

Hence, a) 0.8413, b) 0.9987.

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Sunny_sXe [5.5K]

Hey there! :)

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