WorksheetsCristin Vela MATH-1342.31J - Pre
Total questions: 6
Worksheet time: 5mins
Which of the following is a range of possible outcomes?
Experiment
Event
Sample Space
Sample Size
If the probability of a snake attacking is 0.77, what is the probability that it will not attack?
0.30
0.23
0.20
0.33
There is bag with 12 marbles, 4 marbles are red and 8 marbles are yellow. A marble is chosen from the bag at random. What is the probability that it is red? (Write your answer as a fraction.)
1/3
1/4
2/3
1/6
What is the complement of the event of rolling a dice and getting a 3?
1/6
1/2
1, 2, 4, 5, 6
1, 2, 3, 4, 5, 6
In a group of 100 sports car buyers, 40 bought alarm systems, 30 purchased bucket seats, and 20 purchased an alarm system and bucket seats. If a car buyer chosen at random bought an alarm system, what is the probability they also bought bucket seats?
P(B|A)=P(A∩B)/ P(B)
P(B|A)=P(A∩B)/ P(A)
P(A|B)=P(A∩B)/ P(B)
P(A|B)=P(A∩B)/ P(A)
The spinner has 8 equally sized slices numbered from 1 to 8, some are grey and some are white. Let X be the event that the wheel stops on a white slice, and P(X) the probability of X. Let not X be the event that the wheel stops on a slice that is not white, and P(not X) be the probability of not X. What is P(X) and P(not X).
P(X) = 1/4
P(not X) = 3/4
P(X) = 3/8
P(not X) = 5/8
P(X) = 3/4
P(not X) = 1/4
P(X) = 5/8
P(not X) = 3/8
