Probability with Random Variables
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
Anthony Clark
FREE Resource
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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jamie has 3 raffle tickets. One hundred tickets were sold. Her name was not drawn for the first prize. What is the probability that her name will be drawn for the second prize?
1/3
1/33
3/100
2/99
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
3.
MULTIPLE CHOICE QUESTION
1 min • 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 there 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.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 1.5% of the bolts made by an automotive factory are defective, what is the probability that in a shipment of 200 bolts, there are 6 defective bolts?
binompdf(200, 0.015, 6) = 0.050
binomcdf(200, 0.015, 5) = 0.9176
binomcdf(200, 0.015, 6) = 0.9676
geometpdf(0.015, 6) = 0.0137
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
There is a multiple choice test with 4 choices per question. You must find probability of getting exactly 5 out of 12 questions correct. Which of the following is used to find the probability?
binompdf
binomcdf
1−binomcdf
1-binompdf
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
MC test with 4 choices per question find probability of getting at most 5 out of 10 questions correct. Which of the following would be used?
binomcdf(10, 0.25, 4)
binomcdf(10, 0.25, 5)
1−binomcdf(10, 0.25, 5)
1-binomcdf (10, 0.25, 4)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
MC test with 4 choices per question, find the probability of getting exactly 7 out of 10 questions correct. Which of the following is the correct binomial?
binompdf (10, 0.25, 7)
binompdf (10, 0.70, 4)
1−binomcdf(10, 0.70, 7)
1-binompdf(10, 0.25, 7)
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