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WorksheetsProbability
Total questions: 35
Worksheet time: 1hrs 5mins
What is the sample space when rolling a regular number cube?
1
2, 4, 6
1, 2, 3, 4, 5, 6
6
What is the sample space for the jar of marbles?
red
red, yellow, green, blue
red and yellow
red and green
What is the sample space when choosing one month out of the year?
Jan., Feb., Mar., April, May, June, July, Aug, Sept, Oct., Nov., Dec.
Jan., Mar., April, May, June, July, Sept, Oct., Nov., Dec.
12 months
52 weeks
1
3/9 or 1/3
7/12
5/10 or 1/2
A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a red?
3/10
3/9
1/10
1/9
A bag has 3 red marbles, 2 blue and 4 green and 1 yellow. What is the theoretical probability of pulling a red?
3/10
3/9
1/10
1/9
The table shows the visitors to park on a Sunday. The relative frequencies for adult, girl and boy consecutively are ...
70%, 90%, 40%
35%, 45%, 20%
7%, 9%, 4%
3.5%, 4.5%, 2%
The relative frequency of students who go on a vacation during term break is 80%. How many students would you expect to stay at home if there are 400 students in a school?
20 students
80 students
320 students
400 students
A computer repair company keeps record of all the repairs it makes to laptop. The table shows information about all the repairs made in 2018. Estimate the probability that the repair will cost between 100 - 300 Euros.
30/120
38/120
68/120
83/120
A potter made 100 plates. 10 of them cracked. Estimate the probability that the next plate the potter makes cracks.
90%
70%
30%
10%
An ordinary 6-sided dice is rolled 250 times. How many times would you expect to get a prime number?
250 times
166 times
125 times
83 times
In a video racing game, an obstacle randomly appears on the race track five times every 40 laps. Work out the probability that an obstacle appears on the track during a particular lap.
1/20
1/10
1/8
1/2
In a survey of adults who set themselves some fitness targets, 5% achieved all of them and 15% achieved some of them. Another fitness survey questions 400 adults. How many would you expect to achieve all of their targets.
5 people
20 people
60 people
100 people
Clayton asked the students in his class how many coins they each had in their pockets.
Estimate the probability that a student had less than 9 coins.
7/32
12/32
6/32
25/32
Joe and Cecil each test the same coin to see if it is fair. Joe flips the coin 50 times and and gets 31 heads. Cecil flips the coin 100 times and gets 67 heads. Who has given the more reliable estimate of getting a head?
JOE
CECIL
Mrs. Trevino has 3 red pens, 5 pink pens, and 8 blue pens. What is the probability that she will choose a blue pen to grade papers?
1/2
8
3/16
16/8
To play a game Benny must spin the spinner shown below.
What is the probability that the spinner will land on a number less than 7?
7/8
3/4
8/7
0
A bag contains 15 yellow cubes, 6 blue cubes, and 4 red cubes. If you select a cube at random, what is the probability the cube will NOT be yellow?
25/15
2/5
15
5/3
Nerissa has 5 pink bows, 1 blue bow, and 4 purple bows in a box. She will randomly choose 1 bow from the box.
What is the probability Nerissa will choose a purple bow?
1/2
2/5
1/10
3/5
What is the probability of rolling a 3 and spinning a red?
1/6
1/4
1/10
1/24
What is the probability of rolling an even number and spinning green?
1/8
1/15
4/8
1/10
What is the probability of flipping the coin and getting heads up, then getting a T from the group of letters.
1/2
1/6
2/6
3/12
What is the probability of drawing a blue color and a number 4?
2/5
1/6
3/15
1/15
A likely chance event is closer to what number?
0
0.5
1
100
A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?
6
5/6
1/3
5/11
310 students at a high school were surveyed on the question “Do you like watching basketball being played on TV?”. The results are shown in the two-way table.
Estimate the probability that a randomly selected student likes watching basketball on TV and is a junior student.
0.28
0.16
0.15
0.12
