In: Statistics and Probability
Suppose the test scores for a college entrance exam are normally
distributed with a mean of 450 and a s. d. of 100.
a. What is the probability that a student scores between 350 and
550?
b. If the upper 3% scholarship, what score must a student receive to get a scholarship?
c. Find the 60th percentile of the test scores.
d. Find the middle 30% of the test scores.
a) Let X denotes score of a randomly selected student for a college entrance exam.
Here,
X ~ Normal(450, 1002)
a) The probability that a student scores between 350 and 550
b)
c)
d)