WorksheetsPROBABILITY AND COMPOUND EVENTS 2
Total questions: 10
Worksheet time: 1hrs 20mins
Name
Class
Date
1.
A bag contains 5 blue marbles, 4 red marbles, and 3 orange marbles. Mrs. Cox picks one without looking, replaces it and picks another one. What is the probability that she picks two that are not orange?
a)
9/16
b)
3/4
c)
9/144
d)
5/16
2.
You have a bag of 17 marbles. Four are blue, 6 are green, 2 are red, and the others are yellow. What is the probability of drawing a green marble, putting it aside, and then drawing another green marble?
a)
15/136
b)
30/289
c)
Other
3.
A number cube is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll?
a)
2/3
b)
5/36
c)
1/9
d)
1/36
4.
Lucy has the spinner pictured and spins it twice in a row. What is the probability that she lands on blue first and then on yellow or green?
a)
1 / 16
b)
1 ⁄ 6
c)
1 ⁄ 8
d)
3 ⁄ 4
5.
A fruit basket contains
9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit. Kyle randomly chooses a fruit, does not replace it, then chooses another. What is the probably that he chose two pears?
9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit. Kyle randomly chooses a fruit, does not replace it, then chooses another. What is the probably that he chose two pears?
a)
9/49
b)
4/125
c)
1/10
d)
1/30
6.
A coin and a number cube with the numbers 1 through 6 are tossed. What is the probability of the coin showing tails and the number cube showing the number 3?
a)
1/12
b)
1/4
c)
1/8
d)
1/2
7.
A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?
a)
5/6
b)
1/2
c)
1/3
d)
1/6
8.
A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?
a)
3/10
b)
3/9
c)
1/9
d)
1/3
9.
What is the probability of selecting an orange candy?
a)
0%
b)
25%
c)
50%
d)
100%
10.
Find the experimental probability:
Roll dice: 1, 3, 3, 4, 4
P(1) =
a)
3/5
b)
1/6
c)
2/5
d)
1/5
100 %
