WorksheetsYear 7, What are the chances?
Total questions: 20
Worksheet time: 23mins
Name
Class
Date
1.
What is the probability of rolling a 5 on a standard die?
a)
1/5
b)
5/6
c)
1/6
d)
5
2.
What is the probability of NOT spinning green on this spinner?
a)
1/4
b)
3/4
c)
1/12
d)
5/12
3.
Based on the chart, what is the experimental probability of pulling a green marble?
a)
1/8
b)
8/25
c)
8/100
d)
7/8
4.
If you spin the spinner 90 times, how many times should the number 3 be selected?
a)
9
b)
15
c)
16
d)
30
5.
You draw a card from a standard deck of 52 cards, and don't put it back. What is the probability the next card you draw is the same suit? (There are 13 of each suit in a deck)
a)
1/52
b)
12/52
c)
12/51
d)
1/4
6.
What percentage of the boys had red hair?
a)
5%
b)
10%
c)
12%
d)
4%
7.
There are 23 marbles, each a different color in a bag. One of them is pink. What is the probability of reaching in to the bag, without looking, and selecting a pink marble?
a)
1/22
b)
1/23
c)
23/1
8.
Which is the best way to represent answering 25 multiple-choice questions with 4 choices for each answer?
a)
spin a spinner with four sections 25 times
b)
roll a die 25 times
c)
flip a coin 25 times
d)
roll a die 4 times
9.
What is the probability of spinning an even number?
a)
16 2/3%
b)
33 1/3%
c)
50%
d)
75%
10.
Find the probability of rolling greater than a 1 on a fair 6-sided die.
a)
6/6
b)
5/6
c)
4/6
d)
1/6
11.
Find the probability of rolling a 7 on a fair 6-sided die.
a)
1/6
b)
7/6
c)
0
d)
7/7
12.
Shannon has a bag of jelly beans. She removed on jelly bean, recording the color, and then replaced it. She repeated the process several times and record her results in the table. What is the experimental probability of her selecting a red jelly bean?
a)
11/33
b)
1/3
c)
11/44
d)
18/26
13.
A spinner has 8 sections: 2 purple, 2 yellow, 3 blue, and 1 red.
What is the probability of spinning and landing on a color that is not yellow?
What is the probability of spinning and landing on a color that is not yellow?
a)
P(not yellow) = 6/8
b)
P(not yellow) = 2/8
c)
P(not yellow) = 6
14.
A spinner has 8 sections: 2 purple, 2 yellow, 3 blue, and 1 red.
What is the probability of spinning and landing on a blue or purple section?
What is the probability of spinning and landing on a blue or purple section?
a)
P(blue or purple) = 2/8
b)
P(blue or purple) = 3
c)
P(blue or purple) = 5/8
15.
Find the probability of drawing a 10 from a standard deck of 52 cards.
a)
1 out of 52
b)
13 out of 52
c)
26 out of 52
d)
4 out of 52
16.
What is the Theoretical Probability of not landing on red?
a)
25%
b)
50%
c)
65%
d)
66.7%
17.
An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling an 8.
a)
0
b)
8/6
c)
4/3
d)
1/2
18.
In a cup are the numbers 1 - 20. Find the theoretical probability of
picking an even number.
picking an even number.
a)
10/20
b)
1/2
c)
1/20
d)
20/20
19.
Find the experimental probability:
Roll dice: 1, 3, 3, 4, 4
P(1) =
Roll dice: 1, 3, 3, 4, 4
P(1) =
a)
3/5
b)
1/6
c)
2/5
d)
1/5
20.
What is the experimental probability of tails? (based on image)
a)
1/2
b)
7/16
c)
9/16
100 %
