SOLUTION: In my stats class we are covering normal distributions. Find the percent of scores that are below 130 with a mean of 120 and a standard deviation of 15

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Question 565239: In my stats class we are covering normal distributions. Find the percent of scores that are below 130 with a mean of 120 and a standard deviation of 15
Answer by jim_thompson5910(28595) About Me  (Show Source):
You can put this solution on YOUR website!
Using a TI-83 or TI-84, type in normalcdf(-999,130,120,15) to get 0.7475

Note: the first two arguments are the lower and upper boundaries. The next two arguments are the mean and standard deviation.


So roughly 74.75% of the scores are below 130.