Discrete Distributions
Authored by Anthony Clark
Mathematics
12th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
3.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
4.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A marketing survey compiled data on the number of cars in households. If X = the number of cars in a randomly selected household, and we omit the rare cases of more than 5 cars, then X has the probability distribution shown. What is the probability that a randomly chosen household has at least two cars?
0.20
0.29
0.39
0.61
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is the following a probability distribution?
Yes, because all of the probabilities are between 0 and 1 inclusive and the sum of all the probabilities is 1.
No, all probabilities are not be between 0 and 1 inclusive
No, the sum of all the probabilities is not 1.
Yes, because the distribution is symmetric
7.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
A marketing survey compiled data on the number of cars in households. If X = the number of cars in a randomly selected household, and we omit the rare cases of more than 5 cars, then X has the following probability distribution:
X 0 1 2 3 4 5
P(X) 0.24 0.37 0.20 0.11 0.05 0.03
What is the probability that a randomly chosen household has at least two cars?
0.20
0.29
0.39
0.61
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