Question: There is a 90% probability that a Normally distributed random variable be less than .... 0.90 standard deviations above its mean 1.28 standard deviations above

There is a 90% probability that a Normally distributed random variable be less than .... 0.90 standard deviations above its mean 1.28 standard deviations above its mean 1.50 standard deviations above its mean 1.64 standard deviations above its mean 2.33 standard deviations above its mean

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