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WorksheetsBasics of probability
Total questions: 202
Worksheet time: 13hrs 24mins
*Remember to simplify.*
P(green) =
What is the probability of spinning an even number?
16 2/3%
33 1/3%
50%
75%
5 green
6 yellow
8 blue
7 brown
What is the probability you will choose either a black or white marble?
Drawing a red card from a standard deck of cards
*Remember to simplify.*
*Remember to simplify.*
0.528
out of a jar of marbles that have 10 green marbles, 7 red marbles and 3 blue marbles?
on green than yellow?
that is not green from the jar?
H = heads, T = tails
What is the probability of flipping a coin and getting tails?
1/2
1/3
1/4
1/6
Determine whether the event is impossible, unlikely, as likely as not, likely, or certain. You flip a fair coin and the coin will land heads up.
impossible
unlikely
as likely as not
likely
What is the probability of spinning red?
0
1/2
3/4
1
Find the experimental probability:
Roll dice: 1, 3, 3, 4, 4
P(3) =
3/5
1/6
2/5
1/3
Find the experimental probability:
Roll dice: 1, 3, 3, 4, 4
P(1) =
3/5
1/6
2/5
1/5
How many outcomes do you have when you flip a coin and roll a die?
2
6
12
8
What is experimental probability?
What should happen based on logic
What actually happens based on results
If you flip a quarter then roll a die, how many possible outcomes are there? (draw a tree diagram if you want.)
12
36
24
8
List the sample space (i.e., all the possible outcomes) for selecting a letter from the word probability
p, r, o, b, a, i, I, t, y
p, r, o, b, a, i, i, I, t, y
p, r, o, b, b, a, i, I, t, y
p, r, o, b, a, I, t, y
List the possible outcomes in the sample space for picking a letter from the word classroom.
c, l, a, s, r, o, and m.
c, l, a, s, s, r, o, and m.
c, l, a, s, s, r, o, o, and m.
c, l, a, s, r, o, o, and m.
How many outcomes when choosing a vowel (a, e, i, o, u) and then a number (2 or 6)?
7
5
10
12
What is sample space?
All of the Outcomes
What Will Happen
What Can Happen
What I want to Happen
P(10)
A spinner is broken down into 4 different colours: Yellow, Red, Blue, and Green. You spin it 15 times and get 8 Yellows, 4 Blues, 1 Red, and 2 Green. What is P(Red)?
1/4
1/15
4/15
1
Roll dice: 1, 3, 3, 4, 4
P(3) =
Roll dice: 1, 3, 3, 4, 4
P(1) =
What is the probability of spinning an even number?
16 2/3%
33 1/3%
50%
75%
What is the P( not purple) on this spinner?
2/5
1/5
4/5
3/5
What is the probability of spinning an even number?
16 2/3%
33 1/3%
50%
75%
Two number cubes each have sides that are labeled 1 to 6. Jude rolls the 2 number cubes. What is the probability that the sum of the numbers on the number cubes will equal 4?
1/36
1/18
1/12
1/6
What is the probability of flipping a coin
3 times and getting 3 heads?
1/8
1/4
1/2
3/4
The spinner is spun two times. Determine the probability of landing on red the first spin and on green the second spin .
1/9
1/10
0
1/12
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?
1/12
1/4
1/8
1/2
A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?
3
1/10
3/10
30%
The theoretical probability of rolling an even number on a dice.
3/6
1/2
1/6
5/6
A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?
1/9
2/9
5/21
10/21
You pick a marble from this bag.
What is the probability you will choose either a black or white marble?
3/5
9/100
1/10
2/5
In a drawer, there are 6 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace it, then pick out a 2nd sock. What is the probability that you will pick a brown, then black sock?
1/11
1/18
1/36
2/33
picking a number divisible by 5.
picking an even number.
Theoretical P(4)
3/6
1/6
1/2
4/6
Theoretical P(Yellow)
2/8
3/8
2/3
1/4
Theoretical P(Green or Red)
2/6
1/5
2/5
1/5
Theoretical P(Even #)
1/3
1/2
3/6
2/6
Theoretical P(King)
2/8
1/8
3/8
1/4
Theoretical P(Orange)
2/9
1/4
3/12
3/10
Theoretical P(Blue or Yellow Pop)
4/6
2/5
2/3
1/2
Theoretical P(Odd #)
2/3
4/9
7/10
1/2
Theoretical P(Heart)
13/40
13/52
4/52
3/4
Theoretical P(Red or blue)
7/15
10/20
1/2
4/5
Theoretical P(Black)
1/2
1/12
5/12
0
Theoretical P(2 or Higher)
3/4
2/3
4/6
5/6
Theoretical (Not Green)
9/12
1/4
3/4
3/12
Theoretical (Snickers or Kit Kat)
1/3
2/3
4/9
3/9
Theoretical P(Green or Yellow or Black)
4/3
6/8
2/3
3/4
Theoretical P(Not Diet)
1/6
5/6
1/2
1/3
Theoretical P(Not Yellow or Green or Blue)
1/5
3/17
4/17
12/17
Theoretical P(1 or 5)
4/5
1/2
2/6
1/3
Theoretical (Boys)
3/8
4/8
1/2
3/7
Theoretical (Grandma's Brand)
2/9
2/10
3/10
1/5
The bar graph shows the results of spinning the spinner 200 times. What is the experimental probability of landing on a 3?
The arrow is spun 15 times and landed 4 times on the section labeled Q. Which statement is true?
Shannon has a bag of jelly beans. She removed one jelly bean, recording the color, and then replaced it. She repeated the process 44 times and record her results in the table. What is the experimental probability of her selecting a red jelly bean?
The bar graph shows the results of spinning the spinner 200 times. What is the theoretical probability of landing on a 4 ?
How many total did not attend the school play?
63
15
78
221
How many attended the basketball game but did not attend the school play?
63
55
118
88
