Question

Based on recent results, scores on the SAT test are normally distributed with a mean of 1652 and a standard deviation of 212. What is the probability that a randomly selected student has a SAT score greater than 1750?

Answer 1

`0.32`

Explanation:

Use the `"normalcdf"` feature in your calculator.

Since you dealing with students with scores greater than `1750`, your lower limit is `1750`. Input an extremely large number such as `10^99` for the upper limit. The mean is `1652` and the standard deviation is `212`.

`"normalcdf" (1750, 10^99, 1652, 212) ~~ 0.32`

The probability that a randomly selected student has a score greater than `1750` is about `0.32`.