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Biblioteka

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

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Posljednje ažuriranje almost 2 years ago
31

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
1
Obavezno
2
3
1
5.9.C
1
5.9.C
2
4
1
1
0.8
Pitanje 1
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.

Pitanje 2
2.

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

Pitanje 3
3.

Drag each item to the correct description of the relationship.

  • Positive

  • Negative

  • None

Pitanje 4
4.

Move the graphs to their appropriate description.

  • Item 1

  • Too High

  • Too Low

  • Just Right

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

Pitanje 6
6.

Determine if the following are essential or discretionary expenses

  • Electricity Bill

  • Shelter bill (for house, apartment, etc)

  • Medicine for diabetes

  • car to travel for vacation

  • Newest nike shoes

  • buying clothes because yours are too old and have holes in them

  • Kanye West Tickets

  • going to sea world

  • Essential Expenses

  • Discretionary Expenses

Pitanje 7
7.

Use the frequency table below.

How many people were in this survey?

Pitanje 8
8.

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
Pitanje 9
9.

Determine the mean of the prices of shoes.

1
Pitanje 10
10.

Determine the range of the prices.

1
Pitanje 11
11.

Determine the variance.

1
Pitanje 12
12.

Determine the standard deviation.

0.2
Pitanje 13
13.

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

0.2
Pitanje 14
14.

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

0.2
0.2
0.2
0.2
0.8
Pitanje 20
20.

Select the correlation values that show a weak condition:

Hint: There are 3

Pitanje 21
21.

Select the correlation values that show a strong condition:

Hint: there are 3

Pitanje 22
22.

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

Pitanje 23
23.

Determine if the situation is causation or correlation.

  • The more it rains the faster you run.

  • the amount one lifts increases and their muscles increase

  • 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
Pitanje 24
24.

What percentage of people purchased 2 and 3 items?

1
Pitanje 25
25.

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

Pitanje 26
26.

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
Pitanje 27
27.

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

0.8
Pitanje 28
28.

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
Pitanje 29
29.

Determine the mean of the tool sets Jack found.

1
Pitanje 30
30.

Determine the median of the tool sets Jack found.

1
Pitanje 31
31.

Determine the mode of the tool sets Jack found.

Pitanje 15
15.

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

Pitanje 16
16.

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

Pitanje 17
17.

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

Pitanje 18
18.

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

Pitanje 19
19.

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