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How would you solve these? What is the approximate probability of drawing a score at random from a normal distribution with = 100 and =

How would you solve these?

What is the approximate probability of drawing a score at random from a normal distribution with = 100 and = 10 and finding that the individual's score is 90 or less?

What is the approximate probability of drawing a score at random from a normal distribution with = 100 and = 10 and finding that the individual's score is 110 or more?

What is the approximate probability of drawing a score at random from a normal distribution with = 100 and = 10 and finding that the individual's score is between 80 and 100?

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