
Chapter 4.2 Review
Quiz
•
Mathematics
•
12th Grade
•
Hard
Standards-aligned
Erin Vair-Grilley
Used 5+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
43% of marriages end in divorce. You randomly select 15 married couples. Find the probability that exactly 5 of the marriages will end in divorce.
0.160
0.015
0.039
0.333
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. 146 students who donated blood are randomly selected. What is mean number of people who will have Type B blood?
12.9
1.697
10.214
16.06
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Find the a) mean and b) standard deviation of a binomial distribution with n=50 and p=0.4 (Round to the nearest tenth)
a) 20, b) 12
a) 20, b) 3.5
a) 3.5, b) 20
a) 20, b) 4.47
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An algebra 2 test has 6 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 6 questions, what is the probability that you get at least 4 questions right?
0.033
0.0376
0.005
0.250
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Is this binomial experiment? Shuffle a deck of 52 cards. Turn over the top card. Put the card back in the deck, shuffle again. Repeat the process 50 times. Let X = the number of aces you observe.
Tags
CCSS.HSF-LE.A.1C
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