contestada

Suppose the scores of students on an exam are normally distributed with a mean of 450 and a standard deviation of 85. According to the empirical rule, what percentage of students scored between 195 and 705 on the exam?

Respuesta :

In this case we can see that we are looking for the interval that falls three standard deviations either side of the mean.

Therefore, the answer is 99.7%.

Otras preguntas

Q&A Education