Percents
Probability
Equations
Word Problems
Central Tendency
100

Find the percent change from 280 to 126. 

55%

100

You roll a regular sided di. What is the probability of rolling an odd number?

1/2

100

-16 = 4x - 12

x = -1

100

James ordered several pizzas that cost $12 each and paid a $5 delivery. He spend $53 total, how many pizzas did he order? 

4 pizzas

100

The following are the math test scores for 10 students:

78, 85, 90, 92, 94, 96, 97, 98, 98, 100

Find the following: Median, Q1, Q3, IQR

Median: 95

Q1: 90

Q3: 98

IQR: 8

200

A baseball pitcher won 80% of the games he pitched. If he pitched 35 games, how many games did he win? 

28 games

200

A jar contains 12 caramels, 7 mints and 16 dark chocolates. What is the probability of selecting a mint? 

1/5

200

-5 = 6d - 7d + 4

9 = d

200

Ava bought some books for $8 each and also paid $10 for a library membership. She spent a total of $50, how many books did she buy?

5 books

200

These are the weekly allowances (in dollars) for 11 students:

5, 8, 10, 10, 12, 15, 15, 17, 18, 20, 25

Find the following: Mean, Median, Mode, Q1, Q3, IQR

Mean: 15.9

Median: 15

Mode: 10 and 15

Q1: 10

Q3: 18

IQR: 8

300

There are 28 students in a class. Sixteen of those students are men. What percent of the class are women? (Round to the nearest tenth)

42.9%

300

Suppose you draw two tennis balls at random from a bag containing seven pink, four white, three yellow, and two striped balls. Find the probability of picking a yellow then a pink without replacing. (Simplify)

7/80

300

2k + 36 = 6k - 12

k = 12

300

Liam starts with 100 points and earns 25 points per level he beats. Now he has 225 points, how many levels did he beat? 

5 levels

300

A class recorded their shoe sizes:

6, 6.5, 7, 7, 7.5, 8, 8, 8.5, 9, 10, 10.5

Find the following: Median, Q1, Q3, IQR, and Range.

Is the data more spread out in the lower or upper half? Explain using IQR.

Median: 8

Q1: 7

Q3: 9.5

IQR: 2.5

Range: 4.5

It is more spread out in the upper half (8.5-10.5) compared to the lower half (6-7.5)

400

A student answered 86 problems on a test correctly and received a grade of 98%. How many total problems were on the test, if all the problems were worth the same number of points? (Round to the nearest whole number)

88 problems

400

There are 6 pennies, 9 nickels, and 3 dimes in a box. Find the probability of choosing one nickel and then a dime with replacement.

1/12

400

2d + 18 = 12 - 6(d + 7)

d = -6

400

Sophia earns $15 per hour and gets a $20 bonus each time she babysits. Last week, she earned $95. How many hours did she work? 

5 hours

400

The minutes spend reading per day for 12 students are:

15, 20, 20, 25, 30, 30, 30, 35, 40, 45, 50, 60

Find the following: Mean (round to one decimal), Q1, Q3, IQR. Does the IQR tell you anything about how consistent the students' reading habits are? 

Mean: 35.8 

Q1: 22.5

Q3: 42.5

IQR: 20

A 20-minute spread in the middle 20% suggests some inconsistency in how long students read.

500

Pamela bought an electric drill at 85% off the regular price. She paid $32.89 for the drill. What was the regular price? (Round to the nearest cent)

$38.69

500

Steve reaches into a bag with 5 red marbles, 3 yellow, and 2 green, and randomly selects one. Then, he puts the marble back, and Sam reaches into the same bag and randomly selects a marble. What is the probability that both guys selected a yellow marble?

9/100

500

8(e - 5) = 2(3e - 8)

e = 12

500

Noah is selling ice cream cones for $3 each. He started with $24 and now has $72. How many ice cream cones did he sell?

16 ice cream cones

500

A group of students tracked how many pages they read in a week:

50, 52, 55, 58, 60, 62, 65, 68, 70, 120

Find the following: Median, Q1, Q3, IQR

Is 120 an outlier? Justify using the IQR rule: (A value is an outlier if it more than 1.5 x IQR above Q3 or below Q1)

Median: 61

Q1: 55

Q3: 68

IQR: 13

120 is an outlier 

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