suppose that the test scores follow a normal distribution with a mean 75 and a standard deviation 10. Let X be the test score of a randomly chosen student. Find: a) P(X<80) b) P(X>60) c) P(50
suppose that the test scores follow a normal distribution with a mean 75 and a standard deviation 10. Let X be the test score of a randomly chosen student. Find: a) P(X<80) b) P(X>60) c) P(50
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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Question
suppose that the test scores follow a
a) P(X<80)
b) P(X>60)
c) P(50<X<85)
d) If the bottom 10% of students will fail the test, what is the lowest mark that a student can have and still pass this test.
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