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Biblioteka

Copy of Chapter 1 Test :) (8/30/2024)

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Posljednje ažuriranje almost 2 years ago
33 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
1
1
Obavezno
2
3
1
1
1
5.9.C
2
4
1
1
0.2
Pitanje 1
1.

Find the frequency of a chore that took 3 minutes.

0.2
Pitanje 2
2.

Find the frequency of a chore that took 4 minutes.

0.2
0.2
0.2
0.2
0.8

Jack would like to find the mean, median, and mode of different toolsets. The following are the prices he found.

$321, $175, $278, $221, $398, $287, $199

Mean: _________

Median: _________

Mode: ___________

1
Pitanje 8
8.

Determine the mean of the tool sets Jack found.

1
Pitanje 9
9.

Determine the median of the tool sets Jack found.

1
Pitanje 10
10.

Determine the mode of the tool sets Jack found.

Pitanje 11
11.

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

Pitanje 12
12.

Pitanje 13
13.

Drag each item to the correct description of the relationship.

  • Positive

  • Negative

  • None

Pitanje 14
14.

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?

Pitanje 15
15.

Determine if the following are essential or discretionary expenses

  • Medicine for heart disease

  • jewelry

  • car to travel to work

  • going to a restaurant for a birthday

  • rent/mortgage

  • going to Disneyland

  • Water Bill

  • concert tickets

  • Essential Expenses

  • Discretionary Expenses

Pitanje 16
16.

Move the graphs to their appropriate description.

  • Item 1

  • Too High

  • Too Low

  • Just Right

Pitanje 17
17.

Given that the variance of $9,802, what is the standard deviation?

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

1
Pitanje 18
18.

Determine the mean price of shoes. Don't forget two decimal places and dollar signs.

1
Pitanje 19
19.

Determine the range of the prices.

1
Pitanje 20
20.

Determine the variance.

1
Pitanje 21
21.

Determine the standard deviation.

Accountants earn the following incomes:

$78,000 $79,100 $104,300 $99,000 $198,000

Find the following measures:

Mean: _____________ Median: _____________

0.5
Pitanje 22
22.

What is the mean? Round to the nearest dollar. (no decimals) Don't forget your dollar sign!

0.5
Pitanje 23
23.

What is the median? Round to the nearest dollar. (no decimals) Don't forget your dollar sign!

1
Pitanje 24
24.

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

Pitanje 25
25.

Use the frequency table below.

How many people were in this survey?

Pitanje 26
26.

Select the correlation values that show a weak condition:

Hint: There are 3

Pitanje 27
27.

Select the correlation values that show a strong condition:

Hint: there are 3

Pitanje 28
28.

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. -0.45

  2. 0.09

  3. -0.92

  4. -0.75

Pitanje 29
29.

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 $650 per person with a standard deviation of $40.

1
Pitanje 30
30.

Determine the z score value of someone who spent $685 per person for their vacation? Round 2 decimal places, no dollar sign.

1
Pitanje 31
31.

What percentage is represented by the family who spent $780 per person? Round to the nearest tenth (one decimal place).

The table below shows the amount of pets people have taken during a survey.

1
Pitanje 32
32.

How many people had either 3, 4, or 5 pets?

1
Pitanje 33
33.

What percentage of people had 4 and 5 pets? round to the nearest tenth (one decimal place).

Pitanje 3
3.

Find the frequency of a chore that took 7 minutes.

Pitanje 4
4.

Find the frequency of a chore that took 9 minutes.

Pitanje 5
5.

Find the frequency of a chore that took 14 minutes.

Pitanje 6
6.

Find the frequency of a chore that took 23 minutes.

Pitanje 7
7.

Find the percentile rank of chores that took 9 minutes. Round to the nearest tenth.