If the couple has 4 children, does this mean that 1 of them will get cystic fibrosis? Explain.
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1 point
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Question 3
3.
Explain what this probability means?
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1 point
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Question 4
4.
If a researcher surveys 100 adults at random in one day, does that mean that 56 of them will have had a cup coffee on that day?
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1 point
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Question 5
5.
Using the definition of probability, find the probability of choosing a homework pass out of the mystery box?
(be sure to input your answer as a decimal as we did on the examples)
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1 point
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Question 6
6.
What is the probability of NOT choosing a pencil out of the mystery box?
(be sure to input your answer as a decimal as we did on the examples)
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1 point
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Question 7
7.
What is the probability of NOT choosing stickers out of the mystery box?
(be sure to input your answer as a decimal as we did on the examples)
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1 point
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Question 8
8.
Using the definition of probability, find the probability of choosing a green M&M?
(be sure to input your answer as a decimal as we did on the examples)
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1 point
1
Question 9
9.
What is the probability of NOT choosing a red M&M?
(be sure to input your answer as a decimal as we did on the examples)
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1 point
1
Question 10
10.
Imagine tossing a fair coin 4 times.
What are the total number of outcomes for this sample space?
(use the text tool inside show your work to describe them)
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1 point
1
Question 11
11.
Imagine tossing a fair coin 4 times.
Define event B as getting exactly 3 heads. Find P(B).
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1 point
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Question 12
12.
Imagine tossing a fair coin 4 times.
Define event A as getting at least 2 tails. Find P(A).
round your decimal to 3 places after the decimal point (the hundreths place)
Required
1 point
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Question 13
13.
Jack, Bob, Cindy, and Luke go to lunch each Thursday together. Each week only 2 of the 4 pay for the entire meal. They randomly draw 2 names out of a hat to decide each week to decide which 2 will be slipping the tab.
(here order does not matter...so Jack/Cindy getting pulled means the same as Cindy/Jack...don't double dip!!)
What are the total number of outcomes for this sample space?
(use the text tool inside show your work to describe them)
Required
1 point
1
Question 14
14.
Jack, Bob, Cindy, and Luke go to lunch each Thursday together. Each week only 2 of the 4 pay for the entire meal. They randomly draw 2 names out of a hat to decide each week to decide which 2 will be slipping the tab.
Define event A as Cindy having to pay for lunch. Find P(A).
Required
1 point
1
Question 15
15.
Jack, Bob, Cindy, and Luke go to lunch each Thursday together. Each week only 2 of the 4 pay for the entire meal. They randomly draw 2 names out of a hat to decide each week to decide which 2 will be slipping the tab.
Define event B as Jack or Luke having to pay for lunch. Find P(B).
round your decimal to 3 places after the decimal point (the hundreths place)
