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(a) Z<-1.39
Standard normal distribution

1 Answer

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To find the probability associated with the standard normal distribution for the given value, Z < -1.39, we can use a standard normal distribution table or a calculator.

Using a standard normal distribution table, we look up the value for Z = -1.39. The table provides the cumulative probability to the left of the Z-score.

The table shows that the cumulative probability for Z = -1.39 is approximately 0.0823.

Therefore, the probability of Z < -1.39 in the standard normal distribution is approximately 0.0823, or 8.23%.

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