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1.3-1.5 Quiz Review

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Last updated 6 months ago
20 questions
Answer all the questions you are able to. Do the questions you know how to do first and then go back to the ones that were difficult. Each question is worth a different value.
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Question 1
1.

Question 2
2.


Select all that apply to describe the association of this scatterplot. Choose two options

Question 3
3.

Drag each item to the correct description of the relationship.

  • Positive
  • Negative
  • None
Question 4
4.

Move the graphs to their appropriate description.

  • Item 1

  • Too High
  • Too Low
  • Just Right
Question 5
5.

A scatter plot was constructed on the graph below and a line of best fit was drawn. What is the equation of this line of best fit?



Question 6
6.

Determine if the following are essential or discretionary expenses

  • rent/mortgage
  • going to a restaurant for a birthday
  • concert tickets
  • Medicine for heart disease
  • going to Disneyland
  • Water Bill
  • jewelry
  • car to travel to work
  • Essential Expenses
  • Discretionary Expenses
Below are the prices of the shoes Vanessa's mom found online. Determine the table value, the range, the variance, and the standard deviation.

1
Question 7
7.

Determine the mean price of shoes. Don't forget your dollar sign and 2 decimal places!

1
Question 8
8.

Determine the range of the prices. Dollar sign!!

1
Question 9
9.

Determine the variance.

1
Question 11
11.

Select the correlation values that show a weak condition:
Hint: There are 3

Question 12
12.

Select the correlation values that show a strong condition:
Hint: there are 3

Question 13
13.

The correlation coefficient, r, is given for several different linear models for a data set. Sort the r values from best fit (top) to worst fit (bottom).

  1. 0.09
  2. -0.45
  3. -0.75
  4. -0.92
Question 14
14.

Determine if the situation is causation or correlation.

  • The amount of dark clouds increases and the grades on tests decrease.
  • the amount one lifts and the muscle created.
  • the faster the speed when you drive and the increase in skateboarders at the park.
  • Causation
  • Correlation
Domestic travel during summer vacation can get
pricey. The average cost per person for food, lodging, and airfare averages $540 per person with a standard deviation of $80.
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Question 15
15.

Determine the z score value of someone who spent $480 per person for their vacation? Round two decimal places.

1
Question 16
16.

What percentage is represented by the family who spent $480 per person? Round one decimal place. Don't forget percentage sign.

Question 17
17.

Given that the variance of $8,720, what is the standard deviation?

1
Question 18
18.

The graph to the left shows the amount of money spent on Apps in billions. What is the line of best fit?

1
Question 19
19.

What is the regression value?

1
Question 20
20.

The graph to the left shows the amount of money spent on Apps in billions. Using extrapolation(algebra), determine how much money would be spent in 2030? Round to the nearest tenth in BILLIONS!!!

Question 10
10.

Determine the standard deviation.