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Copy of Chapter 1 Retake (9/5/2024)

Last updated over 1 year ago
31 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.
1

The scatter plot and trend line shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict the number of pages for a book with 12 chapters.

1



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

1

Drag each item to the correct description of the relationship.


  • Positive
  • Negative
  • None
1

Move the graphs to their appropriate description.


  • Item 1



  • Too High
  • Too Low
  • Just Right
Required
2

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? Use the points (1,30) and (2, 35)


3

Determine if the following are essential or discretionary expenses

  • car to travel for vacation
  • buying clothes because yours are too old and have holes in them
  • Shelter bill (for house, apartment, etc)
  • Newest nike shoes
  • Electricity Bill
  • Medicine for diabetes
  • going to sea world
  • Kanye West Tickets
  • Essential Expenses
  • Discretionary Expenses
1

Use the frequency table below.



How many people were in this survey?

1

Use the frequency table below.



Which score had the highest frequency?

Below are the prices of shoes Vanessa's mom found online. Determine the table value, the range, variance and standard deviation.

,
1

Determine the mean of the prices of shoes.

1

Determine the range of the prices.

1

Determine the variance.

1

Determine the standard deviation.

0.2

Find the frequency of a person who turned in 9 homeworks.

0.2

Find the frequency of a person who turned in 10 homeworks.

0.2

Find the frequency of a person who turned in 15 homeworks.

0.2

Find the frequency of a person who turned in 22 homeworks.

0.2

Find the frequency of a person who turned in 23 homeworks.

0.2

Find the frequency of a person who turned in 24 homeworks.

0.8

Find the percentile rank 10 homeworks that were turned in. Round to the nearest tenth.

2

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

4

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

1

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. 0.97
  2. -0.81
  3. 0.57
  4. -0.08
1

Determine if the situation is causation or correlation.

  • the amount one lifts increases and their muscles increase
  • The more it rains the faster you run.
  • The amount of ice cream sales increase and the amount of hot chocolate decrease
  • Positive correlation
  • Negative correlations
The tables below shows how many times 1 or more items were purchased.
1

What percentage of people purchased 2 and 3 items?

1

How many people chose 3, 4, or 5 items?

0.8

Given that the variance of $5,690, what is the standard deviation?

Domestic travel during summer vacation can get
pricey. The average cost per person for food, lodging, and airfare is $485 per person, with a standard deviation of $300.
0.5

Determine the z score value of someone who spent $525 per person for their vacation—round two decimal places.

0.8

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

Janey would like to find the mean, median, and mode of different suitcase sets. The following are the prices she found.

$221, $185, $199, $230, $221, $221, $199

Mean: _________

Median: _________

Mode: ___________
1

Determine the mean of the tool sets Jack found.

1

Determine the median of the tool sets Jack found.

1

Determine the mode of the tool sets Jack found.