SOLUTION: What is the probability that students scored below 400
in a SAT Math test in which the student scores have a mean of 500 with a Standard Deviation of 100?
Algebra ->
Probability-and-statistics
-> SOLUTION: What is the probability that students scored below 400
in a SAT Math test in which the student scores have a mean of 500 with a Standard Deviation of 100?
Log On
Question 754541: What is the probability that students scored below 400
in a SAT Math test in which the student scores have a mean of 500 with a Standard Deviation of 100? Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! What is the probability that students scored below 400
in a SAT Math test in which the student scores have a mean of 500 with a Standard Deviation of 100?
since we have the mean and standard deviation, we can calculate the associated z value for 400
z value = (400 - 500) / 100 = -100/100 = -1
we then consult the normal distribution for z values
P(x<400) = .1587 or 16%