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Worksheets10A Probability
Total questions: 20
Worksheet time: 40mins
Consider the following table with information about all of the students taking Statistics at Happy High School.
Find P( Full-time | Male)
7/3
3/10
3/7
4/7
Consider the following table with information about all of the students taking Statistics at Happy High School.
Find P( Female | Part-time) =
15/31
43/71
31/43
15/43
Given the following VENN Diagram answer the following.
P( A | B )
2
.4
.6
.8
P(A∣B)=
P(A⋂B)/P(A)
P(A⋂B)/P(B)
P(A⋃B)/P(A)
P(A⋃B)/P(B)
A new credit card has been issued to 2000 customers. Of these customers, 1500 hold a Visa, 500 hold an AA card, and 40 hold a Visa and AA card. Find the probability that a random chosen customer holds an AA, given they hold a Visa.
.0267
37.5
.02
.3333
A science teacher gave her class two tests. 25% of the class passed both tests and 42% of the class passed the first test. What percent of those who passed the first test also passed the second?
59.5%
10.5%
1.6%
Not enough information
A jar contains black and white marbles. Two marbles are chosen without replacement. The probability of selecting a black marble and then a white marble is 0.34, and the probability of selecting a black marble on the first draw is 0.47. What is the probability of selecting a white marble on the second draw, given that the first marble drawn was black?
16%
1.38%
72.3%
Not enough information
What is P(T given C)?
45%
29.6%
40%
33.3%
Given P(A) = .8 and P( B| A) = .3, find P( A and B).
2.6
.12
.24
.38
A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon? Select the TWO correct answers
0.3
0.1
3/10
30%
10%
What is sample space?
a process with an uncertain result
a possible result of an action
a list of all possible outcomes of an event
a single outcome or group of outcomes
A clothing store sells shirts, pants, and jackets. What's the complement of randomly selecting an item that is a jacket?
Selecting a shirt or a jacket
Not selecting pants
Not selecting a jacket
Selecting a jacket
In the clothing store, the probability of randomly selecting a jacket is 34%. What's the probability of its complement?
P(not jacket)= 56%
P(jacket) = 66%
P(not jacket) = 50%
P(not jacket) = 66%
What's the probability of the complement of spinning on black as a fraction?
1/4
7/8
8/8
1/8
How much have you enjoyed Maths this year?
0-25%
25-50%
50-75%
75-100%
