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anonymous
 5 years ago
A machine fills jars with 9 ounces of jam. The machine is not exact and jars have a standard deviation of 0.05 ounce. In a lot of 1000 jars, how many jars would you expect to have between 8.9 and 9.1 ounces of jam?
Give the exact answer.
The probability a jar has between 8.9 and 9.1 ounces is at leas
anonymous
 5 years ago
A machine fills jars with 9 ounces of jam. The machine is not exact and jars have a standard deviation of 0.05 ounce. In a lot of 1000 jars, how many jars would you expect to have between 8.9 and 9.1 ounces of jam? Give the exact answer. The probability a jar has between 8.9 and 9.1 ounces is at leas

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dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0assuming a normal distribution with mean 9 and std dev .05 9.1  9 = 0.1 8.99 =0.1 0.1 is 2 deviations from mean 0.1 is 2 deviations from mean using ztable P(2<x<2) = P(x<2)  P(x<2) =0.9772  0.0228 = 0.9544 0.9544*1000 = 954.4 You would expect 954 jars to have between 8.9 and 9.1 oz of jam
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