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# 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 deviation 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 deviation of 8.

What percent scored above 80?

What percent scored below 70%

What percent scored between 74 and 86%?

Percentage of students scoring above 80 is 50%.... View the full answer

1 comment
• Sorry, by mistake it was written 18.26% for the b part. The correct answer is 10.56%.
• sushil.kumar
• Jun 12, 2018 at 7:55pm

(a) The % chances of student who scored above 80%  is 50%. (b) The... View the full answer

1) P ( X &gt; 80) = 0.5 2) P(X... View the full answer

The solution is... View the full answer

1) 50% students scored above 80%. 2) 10.56%... View the full answer

The percent scored by the students above 80 is 50%. The... View the full answer

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