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Chapter 1 review

Last updated over 1 year ago
55 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

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?

3

Determine if the following are essential or discretionary expenses

  • Medicine for Diabetes
  • transportation (subway, car, train)
  • Designer Jeans
  • Shelter
  • Movie tickets
  • Vacation
  • Electric Bill
  • Eating out
  • Essential Expenses
  • Discretionary Expenses
1

How well do you know mean, median, mode, and range?
Match the word on the left to the definition on the right.

  • Median
  • Range
  • Mode
  • Mean
  • the numerical average of the data given
  • the middle of the set after the set is in numerical order
  • the value(s) that occur the most often; possible none.
  • the spread of the data
1

Use the frequency table below.

How many people were in this survey?

1

Use the frequency table below.

Students vote for their favorite location for a field trip. What location had the highest frequency of votes?

1

What is the mean? Round to the nearest tenth. (One decimal place!)

0.2

Type answer to deviation of 92. Round to the nearest tenth. (One decimal place!)

0.2

Type answer to the deviation of 55. Round to the nearest tenth. (One decimal place!)

0.2

Type answer to the deviation of 67. Round to the nearest tenth. (One decimal place!)

0.2

Type answer to the squared deviation of 88. Round to the nearest tenth! (one decimal place)

0.2

Type answer to the squared deviation of 78 here. Round to the nearest tenth! (one decimal place)

1

What is the range of the science test?

1

What is the variance of the table? Round to the nearest tenth! (one decimal place)

1

What is the standard deviation? Round to the nearest tenth! (one decimal place)

Required
1

Find the mean. Round to the nearest cent.

1

Find the median. Round to the nearest cent

1

Find the mode. Round to the nearest dollar.

Accountants earn the following incomes:

$63,000 $79,200 $104,300 $89,000 $165,000



Find the following measures:

Mean: _____________ Median: _____________
0.5

What is the mean? Round to the nearest dollar. (no decimals)

0.5

What is the median? Round to the nearest dollar. (no decimals)

1

What is a better representation of the accountant incomes, the mean or median? Explain your answer.

0.2

Find the total amount earned for clerical assistant.

0.2

Find the total amount earned for lifeguard.

0.2

Find the total amount earned for rec leader.

0.2

Find the total amount earned for basketball coach.

0.2

Find the total amount earned for day camp leader.

0.2

Find the total amount earned for sports referee.

1

Is the data bimodal?

0.2

Find the frequency of 13 year olds surveyed.

0.2

Find the frequency of 14 year olds surveyed.

0.2

Find the frequency of 15 year olds surveyed.

0.2

Find the frequency of 16 year olds surveyed.

0.2

Find the frequency of 17 year olds surveyed.

0.2

Find the frequency of 18 year olds surveyed.

0.8

Find the percentile rank of 15-year-olds surveyed. Round up to the nearest whole percent.

2

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

4

Select the correlation values that show a strong correlation:
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. -0.95
  2. -0.34
  3. 0.01
  4. -0.82
0.5

Find the total number of lunches served.

0.2

Find the relative frequency for 2017. (round 2 decimal places)

0.2

Find the relative frequency for 2019. (round 2 decimal places)

0.2

Find the cumulative frequency for 2016.

0.2

Find the cumulative frequency for 2018.

0.2

Find the cumulative frequency for 2020.

1

What percent of lunches were served in 2018? (round to the whole percent)

0.5

How many lunches were served in 2018 and prior (before)?

1

Determine if the situation is causation or correlation.

  • The amount of shoes bought and the amount of starbucks bought.
  • the amount one sweats and the temperature outside
  • the speed you drive and the amount of rain there is
  • Causation
  • Correlation
Domestic travel during summer vacation can get
pricey. The average cost per person for food, lodging, and airfare averages $790 per person with a standard deviation of $120.
1

Determine the z score value of someone who spent $780 per person for their vacation?

1

What percentage is represented by the family who spent $780 per person?

1

Given that the variance of $7,504, what is the standard deviation?

On average the weather in El Centro, California averages 107 degrees Fahrenheit during the month of July. The standard deviation is 3.4 degrees.
1

What percentage of days were 105 degrees or less?

1

What percentage of days were 111 degrees or more?

1

What percent of days was the weather between 105 and 111 degrees in July?