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Statistics

Authored by Barbara White

Mathematics

10th - 12th Grade

CCSS covered

Statistics
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many people will I have to screen to find a Type O donor?  Use the ____ model.

geometric
binomial
normal

2.

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 exactly 3 questions correct? (You need to figure out the p value first. It is not given to you.)

96.2%
13.2%
8.31%
25.0

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Barry Bonds has a career batting average of .298.  What is the probability that he will get on base 6 times in 10 at bats?

3.58%
5.46%
22.67%
100%

4.

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. What is the probability that at least 2 of the first 10 blood donors has Type B blood? 

0.088
0.697
0.214
0.303 

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A Stats  test has 5 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 5 questions, what is the probability that you get exactly 2 questions correct?

0.6250
0.25
0.0625
0.2636

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A company states that 2% of its computers are returned for defects.  We take a sample of 100 computers to find the probability of 10 being defective.  Is this a binomial distribution?

No because there is not a fixed number of trials.
No because their are more than 2 outcomes.
Yes since there are a fixed number of independent trials, outcomes in 2 categories, and the probability of defect is constant.
No since computers would not be independent.

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

You are a terrible driver. Whenever you drive, there is a 70% chance that you will run over a pedestrian. If you go for a drive 15 times, what is the probability that you will run over 7 or more pedestrians?

0.98
0.02
0.95
0.05

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