A randomly selected value froma normal distribution is found to be 2.1 standard deviations above its mean

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A randomly selected value froma normal distribution is found to be 2.1 standard deviations above its mean.
a. what is the probability that a randomly selected value from the distribution will be greater than 2.1 standard deviations above the mean?
b. What is the probability that a randomly selected value from the distribution will be less than 2.1 standard deviations from the mean?

    • 12 years ago
    A randomly selected value froma normal distribution is found to be 2.1 standard deviations above its mean
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