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Private Library
Probability and Complements
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by Judy Riggle
| 10 Questions
Note from the author:
Probability and it's complement.
1
1 pt
Erica rolls a six-sided number cube once. What is the probability that Erica rolls a 4?
2
1 pt
The complement of an event includes all outcomes that are not the desired outcome. What is the probability of the complement of Erica's roll above? Put your answer as a fraction.
3
1 pt
Sam spins a spinner with 4 equal sections labeled A, B, C, & D. What is the probability the spinner lands on B?
4
1 pt
What is the probability of the complement of Sam not spinning B on the spinner? Put your asnwer in the form of a decimal.
5
1 pt
Nikita went to a sports store to purchase a basketball. In the bin were 7 red, 6 blue, 3 white, and 4 green basketballs. If Nikita were to pick a basketball at random from the bin, what is the probability she will choose a red basketball? Record your answer as a percent.
6
1 pt