SOLUTION: Scores on the SAT test are normally distributed with mean of 500 and standard deviation of 100. Find P(X < 400). Round answer to the nearest whole percent and use the % symbol i

Question 866817: Scores on the SAT test are normally distributed with mean of 500 and standard deviation of 100.
Find P(X < 400). Round answer to the nearest whole percent and use the % symbol in your answer.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

mean of 500 and standard deviation of 100.

z = (400-500)/100 = -1      

P(x < 400) = 15.87%     normalcdf(-10, -1)  | -10 a placeholder 

RELATED QUESTIONS

assume that math sat scores are normally distributed with a mean of 500 and a standard... (answered by lynnlo)
The scores of students on the logic test of an entrance examination are normally... (answered by ikleyn)
A standardized test is designed so that the scores are normally distributed with a mean... (answered by dfrazzetto)
The SAT scores for MATH are normally distributed with a mean of 480 and a standard... (answered by jpg7n16)
5 In exercises 5-8 assume that SAT scores are normally distributed with mean u=1518 and... (answered by tommyt3rd)
The Math SAT scores for women are normally distributed with a mean of 496 and a standard... (answered by stanbon)
Assume the SAT Mathematics Level 2 test scores are normally distributed with a mean of... (answered by rothauserc)
Please help with this:

Assume the SAT test scores are normally distributed with a mean  (answered by Boreal)
Assume the SAT Mathematics Level 2 test scores are normally distributed with a mean of... (answered by stanbon)