At one college, gpa's are normally distributed with a mean of 2.9 and a standard deviation of 0.6. using the empirical rule, what percentage of students at the college have a gpa between 2.3 and 3.5? 84.13% 68% 99.7% 95%

68%

Step-by-step explanation:

According to the empirical rule:

So first we have to find how many standard deviations away from the mean are the given two values. This can be done by converting them into z scores.

The formula to calculate the z-score is:

Using the given values in above formula, we get:

For x = 2.3

For x = 3.5

This means we have to tell how many data values are within one standard deviation of the mean. According to the empirical rule 68% of the values are between z= -1 and z = 1. So the answer is 68%

3201

step-by-step explanation:

  the correct choice is marked

step-by-step explanation:

the first two graphs show multiple turning points. the last graphs matches the description in every detail.