Vocabulary
This is the likelihood of an event occuring.
a. chance
b. probability
c. percent
d. independent
What is probability?
This is the probability, in simplest form, of rolling an even number on a die
What is 1/2?
You have a complementary angle and one of the angle measures is 50 degrees. What's the measure of the other angle?
What is 40 degrees?
There were 10 people at the park & 4 of them really like the new playground. If 100 people were asked, how many would you predict will also really like the playground?
What is 40 people out of 100.
10 x 10 = 100, so 4 x 10 = 40
This the result of an event.
a. dependent
b. event
c. outcome
d. chance
What is outcome?
You and four friends order food at a restaurant. This is the probability that your food will be served first.
What is 1/5?
You have a supplementary angle and the angle measure of one angle is 115 degrees. What's the measure of the missing angle?
If 12 people out of 50 saw the new movie with Reese Witherspoon, how many people out of 150 would you expect to see the movie?
What is 36 people out of 150?
50 x 3 = 150, so 12 x 3 = 36
The outcome you want is this.
a. favorable
b. probability
c. independent
d. wanted
What is favorable?
This is the probability, in simplest form, of rolling greater than 2 on a ten-sided die numbered 1-10.
What is 4/5?
-3 + x > 12
What is the value of x?
What is 15?
If 14 of 60 students are interested in participating in athletics, how many out of 420 would you expect to be interested in athletics?
What is 98 students?
60 x 7 = 420 so 14 x 7 = 98
There are 2 possible outcomes when flipping a coin. What is the likelihood of these outcomes.
A bag has seven Snickers and three Milky Way bars. This the probability of pulling out a Snickers?
What is 7/10?
3(x + 2) - 8x + 7
Simplify the expression.
What is -5x + 13?
For every 75 light bulbs produced at a factory, 2 are defective. In a box of 300 light bulbs, how many would likely be defective?
What is 8 bulbs?
75 x 4 = 300 so 2 x 4 = 8
You have a spinner with equal sections of red, blue, green, yellow and orange. What is the likelihood you will spin purple?
What is impossible?
-5m < 30
What is the value of m?
m > -6
Remember, you had to flip the inequality because the coefficient was negative!
At the school carnival, Jesse won the balloon dart game 1 out of every 5 times he played. If he plays another 15 times, about how many times can he expect to win?
What is 3 wins?
5 x 3 = 15 so 1 x 3 = 3