Tonight please complete page 362: 1,3,5,6,7,8,9.
Also...study! Quick quiz to start off class tomorrow. I've put some practice questions (with answers) for you to try below--study!
IQ scores can be described by the Normal model N(100,15). We’ll consider someone to be of “Above Average Intelligence” if their IQ falls between 110 and 130.
a. What is the probability a person has above average intelligence? (0.2297)
b. If you examine 4 people, what is the probability that none are in the above average category? (0.3521)
c. If you examine 4 people, what is the probability that all four are “above average?” (0.0028)
d. If you examine 10 people what is the probability that at least one is “above average?” (0.926)
e. If you examine 10 people what is the probability that exactly one is “above average?” (0.219) ***Don’t forget to multiply by 10 to account for the 10 different ways to arrange this one person!***
f. What is the probability that you find the first “above average” person on the 5th person? (0.0809)
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