1
Which value could NOT be a probability?
1, 1.5, 0.75, 0, 0.999
What is experimental probability?
The probability that actually occurs in real-life
What is theoretical probability?
What should happen from a math perspective.
If I flip two coins at the same time, how many different possible outcomes are there?
List all of them
4 possible
Heads - Heads
Heads - Tails
Tails - Heads
Tails - Tails
The theoretical probability of getting a blue marble is 1/4.
When I reached in 4 times, I picked out 2 blue marbles.
Which is greater, the theoretical or experimental probability?
Experimental.
4/2 is greater than 1/4
If a weather reporter says there is a 10% chance of rain today, is raining an impossible, unlikely, or certain event?
unlikely
A bag contains 4 red marbles, 3 blue marbles, and 1 green marble. If you pick one without looking, what is the probability of picking a blue marble?
3/8
If I flip two coins, there are 4 possible different outcomes.
What is the probability of getting both heads?
1/4
A jar has 15 pieces of candy: 10 are chocolates and 5 are lollipops. Is it likely, unlikely, or certain that you will pick a lollipop?
Unlikely
A spinner is divided into 8 equal sections: 2 are yellow, 5 are purple, and 1 is white. Is it most likely that the spinner will land on which colour?
purple
A box contains 5 red pens, 2 blue pens, and 3 green pens. What is the probability of NOT picking a red pen?
5/10 or 1/2
If two 6-sided dice are rolled, how many different possible outcomes are there?
6x6 = 36
If you roll a standard six-sided die, what is the probability of rolling a number greater than 3?
Grade 6 - as a percent
Grade 5 - as a decimal
50%
0.50
There are 12 months in a year.
If you pick one month at random, what is the probability it starts with the letter "M"?
As a fraction - SIMPLIFIED
1/6
A bag contains the letters in the word "PROBABILITY". If you pick one tile, what is the probability that it is a vowel?
(Y is not a vowel in this case)
4/11
At Seneca restaurant, you can get a combo with a drink and a sandwich. There are 4 different types of drinks and 3 possible types of sandwiches.
How many possible outcomes are there?
12
You have a spinner with numbers 5 through 10 (inclusive of 5 and 10. Meaning 5,6,7,8,9,10).
If you spin it once, what is the probability of landing on a prime number?
2/6 or 1/3
5 and 7 are prime numbers.
6,8,9 and 10 are not.
If you randomly pick a whole number between 1 and 20 (including 1 and 20), what is the probability that the number is a multiple of 3?
3/10
You have a bag of tiles numbered 1 through 30. If you reach in and pull out one tile at random, what is the probability that the number is a multiple of 4?
7/30
If I roll a die at the same time that I flip a coin, what is the probability that I will roll a heads and a number less than 3?
2/12 or 1/6