Log inSign up for FREE
Library

Alg Chapter 6 Test

Last updated over 4 years ago
25 questions
Skill: S.ID.6 Summarize, represent, and interpret bivariate quantitative data
The weight of a female golden retriever puppy was collected during the first 12 days after birth and recorded in the table below. Create a scatterplot for this data on your calculator and then answer the following questions.

1

What is the LSRL? (Round your answers to nearest tenth)

2

What do the slope and y-interecept mean in context?

1

What is the correllation coeffecient (r) rounded to 4 decimal places?

4

Choose all that apply to fully describe the association.

1

What would you predict the weight to be in 6 days? (Use your equation)

1

Calculate your residual using your answer above. (Just write the number for your answer.)

0

Did you answer all parts to this section?

Skill: S.ID.7 Interpret linear models
1

Graph # _________ has a correlation coefficient of r= -0.05

1

Graph # _________ has a correlation coefficient of r= -0.98

1

Graph # _________ has a correlation coefficient of r= -0.70

1

Graph # _________ has a correlation coefficient of r= 0.68

2

  1. A national consumer magazine reported the following correlations.
  • The correlation between car weight and car fuel efficiency is −0.80.
  • The correlation between car weight and annual maintenance cost is 0.20.

4

The Mayor notices that there is a strong positive linear association between the number of fireman at a fire and The amount of damage (in dollars). he immeaditely decides to reduce the number of firefighters dispatched to reduce the amount of damage. What is wrong with the Mayor's thinking? Explain using mathematical vocabulary.

0

Did you answer all questions in this section?

Skill: F.LE.2 Model linear, quadratic, exponential relationships with functions
Identifying Sequences: State which type of sequence each table represents; arithmetic, geometric, or neither. Also, state whether the graph would be linear, exponential, or quadratic.

1

What type of sequence is part a?

1

What type of graph would part a be?

1

What is the sequence generator for part a? (How do you get the next term in the sequence)

1

What type of sequence is part b?

1

What type of graph would part b be?

1

What is the sequence generator for part b? (How do you get the next term in the sequence)

The initial value of a particular car is $4500 and is decreasing 9% per year.
1

This situation would be which of the following:

1

What is the multiplier?

1

Write an equation for the cost in x years.

1

In 4 years, the car will be worth $____________. (Round your answer to the nearest cent)

1

Did you complete all questions in this section?