Answer:
y = 45
Explanation:
(8)(10)(2)y = 7200
[ Simplify both sides of the equation ]
160y = 7200
[ Divide both sides by 160 ]
160y / 160 = 7200 / 160
y = 45
Check:
8(10)2(45) = 7200
Answer: a) 0.8413, b) 0.9987.
Step-by-step explanation:
Since we have given that
Mean = 3 pounds
Standard deviation = 0.25 pounds
n = 28 bricks
So, (a) What is the probability that all the bricks in the sample exceed 2.75 pounds?
b) What is the probability that the heaviest brick in the sample exceeds 3.75 pounds?
Hence, a) 0.8413, b) 0.9987.
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Answer:
Step-by-step explanation:
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