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Biblioteka

Chapter 1 review

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Posljednje ažuriranje almost 2 years ago
55

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
5.9.C
1
5.9.C
2
4
1
1
1
Pitanje 1
1.

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

Pitanje 2
2.

Drag each item to the correct description of the relationship.

  • Positive

  • Negative

  • None

Pitanje 3
3.

Move the graphs to their appropriate description.

  • Item 1

  • Too High

  • Too Low

  • Just Right

Pitanje 4
4.

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 5
5.

Determine if the following are essential or discretionary expenses

  • Movie tickets

  • Eating out

  • Designer Jeans

  • Vacation

  • Medicine for Diabetes

  • Shelter

  • transportation (subway, car, train)

  • Electric Bill

  • Essential Expenses

  • Discretionary Expenses

Pitanje 6
6.

How well do you know mean, median, mode, and range?

Match the word on the left to the definition on the right.

  • Range

  • Median

  • Mean

  • Mode

  • 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

Pitanje 7
7.

Use the frequency table below.

How many people were in this survey?

Pitanje 8
8.

Use the frequency table below.

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

1
0.2
0.2
0.2
0.2
0.2
1
1
1
Obavezno
1
Pitanje 18
18.

Find the mean. Round to the nearest cent.

1
Pitanje 19
19.

Find the median. Round to the nearest cent

1
Pitanje 20
20.

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
Pitanje 21
21.

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

0.5
Pitanje 22
22.

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

1
Pitanje 23
23.

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

0.2
Pitanje 24
24.

Find the total amount earned for clerical assistant.

0.2
Pitanje 25
25.

Find the total amount earned for lifeguard.

0.2
0.2
0.2
0.2
1
0.2
Pitanje 31
31.

Find the frequency of 13 year olds surveyed.

0.2
Pitanje 32
32.

Find the frequency of 14 year olds surveyed.

0.2
0.2
0.2
0.2
0.8
Pitanje 38
38.

Select the correlation values that show a weak condition:

Hint: there are 3

Pitanje 39
39.

Select the correlation values that show a strong correlation:

Hint: there are 3

Pitanje 40
40.

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
Pitanje 41
41.

Find the total number of lunches served.

0.2
0.2
0.2
0.2
0.2
1
0.5
Pitanje 49
49.

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
Pitanje 50
50.

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

1
Pitanje 51
51.

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

Pitanje 52
52.

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
Pitanje 53
53.

What percentage of days were 105 degrees or less?

1
Pitanje 54
54.

What percentage of days were 111 degrees or more?

1
Pitanje 55
55.

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

Pitanje 9
9.

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

Pitanje 10
10.

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

Pitanje 11
11.

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

Pitanje 12
12.

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

Pitanje 13
13.

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

Pitanje 14
14.

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

Pitanje 15
15.

What is the range of the science test?

Pitanje 16
16.

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

Pitanje 17
17.

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

Pitanje 26
26.

Find the total amount earned for rec leader.

Pitanje 27
27.

Find the total amount earned for basketball coach.

Pitanje 28
28.

Find the total amount earned for day camp leader.

Pitanje 29
29.

Find the total amount earned for sports referee.

Pitanje 30
30.

Is the data bimodal?

Pitanje 33
33.

Find the frequency of 15 year olds surveyed.

Pitanje 34
34.

Find the frequency of 16 year olds surveyed.

Pitanje 35
35.

Find the frequency of 17 year olds surveyed.

Pitanje 36
36.

Find the frequency of 18 year olds surveyed.

Pitanje 37
37.

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

Pitanje 42
42.

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

Pitanje 43
43.

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

Pitanje 44
44.

Find the cumulative frequency for 2016.

Pitanje 45
45.

Find the cumulative frequency for 2018.

Pitanje 46
46.

Find the cumulative frequency for 2020.

Pitanje 47
47.

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

Pitanje 48
48.

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