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Laabri

Unit 7 Practice Test

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Last updated about 2 years ago
19 Nsɛmmisa
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1.

If a half cup of butter weighs 4 ounces, then how many cups are in a pound of butter?

Note: There are 16 ounces in a pound.

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2.

In an Oreo cookie factory, 15,000 cookies are made every five minutes. How many cookies are produced in one 8-hour shift? Label you answer.

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3.

Solve the proportion.

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4.

During the NBA play-offs, ticket prices often are inflated due to scalpers. Calculate the price for a Bucks ticket based on the information in the table.

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5.

The Fiserv Forum has a parking garage that charges a flat fee for parking, which is included as part of the game day costs. How much is the parking fee?

Hint: Use your answer from problem 4 to help you determine the cost of parking.

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6.

Write an equation in slope-intercept form that models the linear relationship in the table.

Hint: Use your answers from problems 4 & 5 to help you write the linear equation.

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7.

Use your equation from problem 6 to calculate the game day costs for a family of six to go to a play-off game to see the Bucks play at the Fiserv Forum.

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8.

A car had an initial value of $31,250. After 5 years, the car value dropped to $12,500. What is the average depreciation of the car over those 5 years?

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9.

Michael tracks his gas usage over a 200 mile trip. Determine the slope from the following graph and explain it meaning.

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10.

Michael tracks his gas usage over a 200 mile trip. Determine the y-intercept from the following graph and explain it meaning.

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11.

Draw a trend line. Estimate and interpret the slope of the line.

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12.

Estimate and interpret the y-intercept of the line.

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13.

Identify the independent and dependent variables in the table provided.

Draggable itemarrow_right_altCorresponding Item

Time in minutes

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independent

Rainfall in inches

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dependent

Number of plants

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None of the above.

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14.

Create a scatterplot. Label the axes. Draw a trend line and write a linear model for your trend line.

Round the slope & y-intercept to the nearest hundredth.

https://www.desmos.com/calculator

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15.

Using your equation from #14, predict the number of plants for 20 inches of rain.

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16.

Is your prediction in #15 an example of interpolation or extrapolation?

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17.

What is the correlation coefficient for the scatterplot you made in #14? Is this a strong or weak correlation?

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18.

Determine the following using the data in the table:

Match the correct value to the correct statistic.

Draggable itemarrow_right_altCorresponding Item

2 pets

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Median

1 pet

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Quartile 1

1.6 pets

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Quartile 3

0 pets

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Mean

1.1 pets

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None of the above

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19.

Data on the number of pets someone owns is an example of what kind of data?