Calculating Probabilities of Compound Events
Authored by Anthony Clark
Mathematics
7th Grade
Used 1+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A sock drawer has 5 pairs of white, 4 pairs of black and 6 pairs of multicolored socks. What is the probability that you choose a white pair, black pair, then a multicolor pair (throwing each pair onto the floor after choosing it)?
1/5 x 1/4 x 1/6
5/15 x 4/15 x 6/15
5/15 x 4/14 x 6/13
1/15 x 1/15 x 1/15
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the probability of getting a 1 or 2 on a die and tails on a quarter. (Which is the correct work?)
1/6 x 1/6 x 1/2
2/6 x 1/2
1/6 x 1/2
2/6 x 2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the probability of getting a 1 or 2 on a die and tails on a quarter.
1/72
12
1/12
1/6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mr. & Mrs. Mathy are having triplets. What is the probability that they will all be girls? (Which is the correct set up of work?)
1/3 x 1/3 x 1/3
1/2 x 3
1/2 x 1/2 x 1/2
1/8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mr. & Mrs. Mathy are having triplets. What is the probability that they will all be girls?
3/2
1/27
1/3
1/8
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A bucket contains 5 yellow and 7 red marbles. If 2 marbles are selected randomly without replacement, what is the probability that one will be yellow and the other will be red?
5/12 x 7/12
5/12 x 7/11
5/12 x 4/11
7/12 x 6/11
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The letters from the word dependent are placed in a box. If two letters are drawn at random, what is the probability that they will both be consonants?
3/9 x 2/8
6/9 x 6/9
6/9 x 5/8
6/9 x 5/9
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