SOLUTION: A standardized test is designed so that the scores are normally distributed with a mean of 500 and a standard deviation of 100. Find the probability that a students score is betwee
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Question 615447: A standardized test is designed so that the scores are normally distributed with a mean of 500 and a standard deviation of 100. Find the probability that a students score is between 400 and 600. Use normal approximation. Answer by dfrazzetto(283) (Show Source):
You can put this solution on YOUR website! Assuming a normal distribution, p of a students store falling between 1 standard deviation below and 1 standard deviation above is 2(34.1%) or about 68.2 percent
