Probability Ratios
Probability as Percents
Mean
Meaner
Name that Operation
100
What is the probability of randomly selecting a day of the week that begins with "T"?
2/7
100
A cat has a litter of kittens. There are 2 black kittens, 3 calico kittens, and 1 yellow kitten. What is the probability of randomly selecting a calico kitten?
50%
100
Find the mean of the set of numbers: 80, 90, 75, 85 and 95
85
100
Andrea spent $360 over the last 9 days. How much money does she spend on average each day?
$40
100
Monty is distributing colored pencils to his classmates. He has 32 pencils and 8 classmates. How many pencils will each classmate get? OPERATION AND ANSWER WITH LABEL
Division 4 pencils
200
A deck of cards contains 52 cards. There are four kings in the deck. What is the probabilty of randomly selecting a king?
4/52 or 1/13
200
What are the steps to writing probability has a perent. (Hint: There are 2 steps)
1. Divide the numerator by the denominator 2. Multiply by 100
200
Find the mean: $15, $11, $9, $13
$7
200
Bruce has eaten 19,710 kibbles in the last year. How many kibbles does he each day?
54 kibbles
200
Deandra is making Christmas cookies for her friends. She is giving 12 cookies to each of her 8 friends. How many cookies does she need to make? OPERATION AND ANSWER AND LABEL
96 cookies
300
If the probability of having pizza for dinner is 0.2. What is the probability of NOT having pizza for dinner?
0.8
300
In the month of July is was over 90 degrees 6 times. There are 30 days in June. What is the probability of randomly selecting a day over 90 degrees (written as a percent)?
20%
300
Erica measured at noon for the last 7 days. The temperatures were: 82.2 degrees, 88.1 degrees, 79.4 degrees, 79.0 degrees, 82.4 degrees, 87.6 degrees, 88.1 degrees. What was the average temperature?
83 degrees
300
Monica earned 720 points on 9 assignments this year. What is her average score on each assignment?
80
300
Alex is 15 years old. He just saved up $120, but now he wants to spend $80 on a new game. How much money will he have left over? OPERATION AND ANSWER AND LABEL
Subtraction. $40
400
What is the proper name for a table that uses tallys to show data?
Frequency table.
400
If there is a 20% chance that it will rain tomorrow, what is the probability that it will NOT rain?
80%
400
Andre harvested 12,500 apples from 50 trees over the season. How many apples does each tree produce?
250 apples
400
There are two shelves. Each shelf has 2 drawers. Each drawer has 8 items. How many items are there all together? OPERATION and ANSWER and LABEL
Check Answer 32 items
500
The probability that your cake will rise properly is 0.72, what is the probability that your cake will not rise properly?
0.28
500
If the probability that you will get an A on this Quiz is 92%, what is the probability that you will NOT get an A on this quiz?
What is 8%?
500
What are the steps to finding mean?
1. Add all the numbers. 2. Divide by the amount of numbers.
500
Anthony uses 2,277 pieces of pepperonni in a night. He puts 23 pieces on each pizza. On average, how many pizzas can he make?
99
500
Monica has 12 shirts in her closet. She just went shopping and bought 2 more shirts. How many shirts does she have now? OPERATION and ANSWER
14 shirts
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