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Probability and Stats
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Ratios/Proportions
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100

A spinner has 7 equally sized spaces that represent the colors blue, green, orange, purple, red, yellow, and brown. What is the probability of landing on blue? Represent your answer as a fraction and a percent.

1/7 and about 14.3%

100

What is 5% of 160?

8

100
Skyzone sells tickets for their jump area. You buy a ticket for 4 hours and it costs $24. How much are you paying per hour to jump?
$6
100
Solve for n. 2n+6=46
n=20
100

Simplify the expression.  6n + 4 + 9n

15n + 4

200

A class of 10 students took a quiz and reported scores of: 75, 80, 60, 90, 85, 80, 70, 90, 70, 65. What is the median of the data?

77.5

200
Amanda got a 21/28 on her test. What is her percent score?
75%
200

What are the two requirements that make a graph proportional?

The graph needs to go through the origin and be a straight line.

200
Solve for n. 83=-3n-25
n=-36
200

Simplify the expression.  8p - 3 - 19p + 1

-11p - 2

300

A class of 10 students took a quiz and reported scores of: 75, 80, 60, 90, 85, 80, 70, 90, 70, 65. What is the mean of the data?

76.5

300
A restaurant bill comes to $34.60. You decide to leave an 15% tip. What is the total cost of the bill?
$39.79
300
Blake is able to get 27 miles on 1 tank of gas. How many miles can Blake travel on 6 tanks of gas?
162 miles
300

Solve for n. (n/3)-17=4

n=63

300

Simplify the expression.  2w - 5(3w - 9)

-13w + 45

400

A passenger train has tickets available for 12 window seats, 8 aisle seats, and 15 middle seats. The next person to buy a ticket will be randomly assigned to one of those seats. What is the probability that the person will be given an aisle seat?

8/35 or about 22.8%

400

Kim bought a pizza in California. The pizza cost $15 before the 8% sales tax was applied. She then tipped 10%. How much did Kim pay for the pizza after taxes and tip were added?

Kim paid $17.82

400
You paid $28.00 for 8 gallons of gasoline. How much would you pay for 15 gallons of gasoline?
You would pay $52.50
400

Solve for n. 2(n - 7) + 5n = 28

n = 6

400

What is the sum of (2x - 5y) and (x + y)?

3x - 4y

500

A class of 10 students took a quiz and reported scores of: 75, 80, 60, 90, 85, 80, 70, 90, 70, 65. Find the Interquartile Range of the data.

15

500

Charlie invested $140 and earned a simple interest of 4% per year on the initial investment. If no money was added or removed from the investment, what was Charlie's investment worth after 5 years?

$168

500

A recycling plant processes an average of 1/3 ton of glass each minute. At approximately what rate does the recycling plant process glass in tons per day?

480 tons per day

500

Solve for n.  12 - 3(2n - 6) = 108

n = -13

500

A triangle has side lengths of (5.5x + 6.2y) cm, (4.3x + 8.3z) cm, and (1.6z - 5.1y) cm. Write and simplify an expression to represent the perimeter of this triangle.

9.8x + 1.1y + 9.9z