Th combined SAT scores for students taking the SAT-I tests are normally distributed with a mean...
Th combined SAT scores for students taking the SAT-I tests are normally distributed with a mean of 982 and a standard deviation of 192. Find the probability that a randomly selected student who took the SAT-I has a greater score than 700. Round to 4 decimals
Homework Answers
Solution :
Given that ,
mean = 
= 982
standard deviation = 
= 192
P(x > 700) = 1 - P(x < 700)
= 1 - P[(x -
) /
< (700-982) /192 )
= 1 - P(z < -1.47)
= 1 - 0.0708 = 0.9292,Probability = 0.9292
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