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Biblioteka

Unit 2 Practice Test

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Posljednje ažuriranje about 2 years ago
22 questions
Napomena autora:

You may use a handheld calculator, but not your cell phone calculator.

You may use a handheld calculator, but not your cell phone calculator.

Learning Target: I can interpret data in a stem-and-leaf plot.
1
1
I can analyze a frequency table.
1
1
Learning Targets: *I can analyze a histogram. *I can analyze the shape of a distribution.
2.5
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0
Learning Target: I can calculate and use measures of central tendency to evaluate data sets.
1
1
0
1
Learning Target: I can calculate and use a 5-number summary. er summary to construct a box plot.
1
1
1
Learning Target: I can analyze the shape and distribution of a box plot.
1
1
1
Learning Target: I can use the Central Limit Theorem to estimate the mean of a population.
1
Learning Target: I can calculate standard deviation to determine the spread of a data set.
0
1
1
1
Pitanje 1
1.

Scores on a Unit Test

Key: 6|2 = 62%

What is the range of the test scores in the stemplot above?

Pitanje 2
2.

Scores on a Unit Test

Key: 6|2 = 62%

How many students took the Unit Test?

Pitanje 3
3.

Mid-day Temperatures for a Week

How many days were at least 23 degrees?

Pitanje 4
4.

Mid-day Temperatures for a Week

What is the relative frequency of the temperature at 24 degrees for the week?

Pitanje 5
5.

Match the histogram to the term that best describes its shape.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

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Unimodal, Bell Shaped

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Bimodal

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Right Skew

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Left Skew

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None of the Above

Pitanje 6
6.

About how many employees made less than $30,000 at ABC Corporation?

Pitanje 7
7.

Based on the distribution of wages at ABC Corporation, do you think they pay their employee's fairly?

Pitanje 8
8.

Scores on a Unit Test

Key: 6|2 = 62%

What is the mean score on the Unit Test? Round to the nearest tenth of a percent.

Pitanje 9
9.

Scores on a Unit Test

Key: 6|2 = 62%

What is the median score on the Unit Test? Round to the nearest tenth of a percent.

Pitanje 10
10.

Is the mean the same, right, or left of the median? What does this tell you about the spread of the data?

Pitanje 11
11.

Scores on a Unit Test

Key: 6|2 = 62%

What is the mode of the Unit Test? There maybe more than one answer.

Pitanje 12
12.

Number of Customers in a Week

What is the median number of customers?

Pitanje 13
13.

Number of Customers in a Week

What is the first quartile, Q1?

Pitanje 14
14.

Number of Customers in a Week

What is the third quartile, Q3?

Pitanje 15
15.

Which of the following boxplots has a lower outlier?

Pitanje 16
16.

What is the approximate range of deaths from Lung Diseases in the UK?

Pitanje 17
17.

What is the approximate median number of deaths per month from Lung Diseases?

Pitanje 18
18.

According to the Central Limit Theorem which of the following samples would have a mean closer to the population mean.

Pitanje 19
19.

Here are two samples with a mean of 50.

Which Histogram has a greater standard deviation? Explain why?

Pitanje 20
20.

What is the mean age of the Supreme Court Justices? Round to the nearest tenth of a year.

Pitanje 21
21.

What is the standard deviation of the Supreme Court Justices? Round to the nearest tenth.

Pitanje 22
22.

Which of the Supreme Court justices do not fall with in one standard deviation of the mean?