This question has been answered

Question

# I need help solving these problems, I don't understand how to solve them.

The scores on a college entrance examination are normally distributed with a mean of 550 and a standard deviation of 100. For a sample of 30 students, what is the probability that the sample

- Has a mean of at least 600?
- Has a mean between 500 and 575?
- Has a mean less than 575?

Answered by Expert Tutors

Step-by-step explanation

Subject:
Math, Statistics and Probability

**372,107 students got unstuck** by Course

Hero in the last week

**Our Expert Tutors** provide step by step solutions to help you excel in your courses