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A normally distributed set of scores has mean 120 and standard deviation 10 What score cuts off the top 15%? What is the probability of

A normally distributed set of scores has mean 120 and standard deviation 10

What score cuts off the top 15%?

What is the probability of a randomly chosen score being between 105 and 125?

What percentage of scores are less than 100?

For a certain normal distribution, = 8, about 20% of all scores are less than 83. What is the mean of the distribution?

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