Marks in a test are normal with mean 55 and standard deviation 10. What percentage of students score more than 75? (Take $P(0 < Z < 2) = 0.4772$ .)

2.28%Correct answerYour answer5%Correct answerYour answer47.72%Correct answerYour answer97.72%Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer A

Correct answer: A

Worth noting

47.72% is the share between 55 and 75.

Ten questions from Normal Distribution, at your own pace.

Ten questions from Normal Distribution, at your own pace.

Marks in a test are normal with mean 55 and standard deviation 10. What percentage of students score more than 75? (Take P(0<Z<2)=0.4772P(0 < Z < 2) = 0.4772P(0<Z<2)=0.4772.)