Students will find the probability of dependent events. MM1D2b
Questions and Answers
1.
There are 6 red, 4 green, 5 blue and 5 yellow marbles in a jar.
What is the probability of picking a green marble, then a blue marble if you do not put back the first marble?
A.
1/20
B.
1/19
C.
9/20
D.
9/40
2.
There are 6 red, 4 green, 5 blue and 5 yellow marbles in a jar.
What is the probability of picking a green marble, then a green marble if you do not put back the first marble?
A.
3/95
B.
4/95
C.
7/20
D.
1/25
3.
From a standard deck of playing cards, you pick a card and without returning the card you pick a second card.
What is the probability that you picked a spade and then a heart?
A.
1/16
B.
1/2
C.
13/2704
D.
13/204
4.
From a standard deck of playing cards, you pick a card and without returning the card you pick a second card.
What is the probability that you picked a 10 and then a face card (king, queen or jack)?
A.
3/169
B.
12/663
C.
2/13
D.
1/221
5.
A teacher has a box of crayons that contains 6 red, 6 blue, 6 green and 6 purple crayons. Haily picks a crayon out of the box, then without putting that crayon back she picks a second crayon.
What is the probability that the first crayon is purple and the second crayon is purple?
A.
1/16
B.
11/47
C.
5/92
D.
3/46
6.
A teacher has a box of crayons that contains 6 red, 6 blue, 6 green and 6 purple crayons. Haily picks a crayon out of the box, then without putting that crayon back she picks a second crayon.
What is the probability that the first crayon is red and the second crayon is green?
A.
1/16
B.
11/47
C.
5/92
D.
3/46
7.
On a math test, 5 out of 30 students got an A.
If three students are chosen at random without replacement, what is the probability that all three got an A on the test?
A.
1/406
B.
1/216
C.
1/4
D.
125/24360
8.
On a math test, 5 out of 30 students got an A.
If two students are chosen at random without replacement, what is the probability that the first student did NOT get an A and the second student got an A on the test?
A.
5/36
B.
2/87
C.
1/36
D.
25/174
9.
All the letters of the alphabet are written on a piece of paper and placed in bag. A student draws out a letter without putting back the letter they draw a second letter.
What is the probability of picking a vowel and then the letter B?
10.
From a standard deck of cards, you draw two cards without replacement. What is the probability you drew a 6 and then an ace?
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Sample Question
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Questions: 16 | Attempts: 6557 | Last updated: Mar 22, 2022