Answered You can hire a professional tutor to get the answer.
QUESTION
A placement exam is given to all students entering a certain college. The scores are normally distributed w/ a mean of 80 and a standard devotion of
A placement exam is given to all students entering a certain college. The scores are normally distributed w/ a mean of 80 and a standard devotion of 8.
What percent scored above 80?
What percent scored below 70%
What percent scored above 90%?
What percent scored between 74 and 86%?
