Determine the probability a single car


A dumb truck carries 75 tons of rocks in each load. Its the normal distribution with 75 tons as mean and .8 standard deviation. Determine the probability that 20 cars selected at random will have mean load weight of 74.5 or more? Determine the probability a single car will have the the load of 74.5 or more?

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Basic Statistics: Determine the probability a single car
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