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ALGEBRA 2 Chapter 12 Mini Quiz
1. In a poll of 650 randomly selected high school seniors, 475 plan to
attend college for at least 2 yr.
a. Find the sample proportion.
b.
Find the margin of error.
c. Find an interval that is likely to contain the true population proportion
2. In a rain forest you are visiting, there is a 35% chance of rain each day.
Find the probability of rain on exactly 2 of your first 5 days.
Use the data from the survey at the right.
3.
5.
P(female | running)
P(male | running)
Which sneakers are preferred?
Running
Cross Training
Female
12
28
Male
42
14
4. P(female | cross training)
6. P(male | cross training)
7. In a recent staff survey, 63% of staff admitted Doug Cole is an evil man. Of those, 30% of them
said they would still trade with him in a game of Settlers. Of those who mysteriously think Cole is a
decent human being, 72% of them would trade with him.
a) P(trade with Cole) happens twice!
b) P(trade | evil)
c) P(no trade | not evil)
d) P( not evil | trade)
Hello, my name is_____________________