Unit 2 Practice Test

Last updated over 1 year ago
22 questions
Note from the author:
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

Scores on a Unit Test
Key: 6|2 = 62%











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

1

Scores on a Unit Test
Key: 6|2 = 62%











How many students took the Unit Test?

I can analyze a frequency table.
1

Mid-day Temperatures for a Week
How many days were at least 23 degrees?

1

Mid-day Temperatures for a Week
What is the relative frequency of the temperature at 24 degrees for the week?

Learning Targets: *I can analyze a histogram. *I can analyze the shape of a distribution.
2.5

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

Draggable itemCorresponding Item
Unimodal, Bell Shaped
Bimodal
Right Skew
Left Skew
None of the Above
1

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

0

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

Learning Target: I can calculate and use measures of central tendency to evaluate data sets.
1

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.

1

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.

0

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

1

Scores on a Unit Test
Key: 6|2 = 62%










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

Learning Target: I can calculate and use a 5-number summary. er summary to construct a box plot.
1

Number of Customers in a Week
What is the median number of customers?

1

Number of Customers in a Week
What is the first quartile, Q1?

1

Number of Customers in a Week
What is the third quartile, Q3?

Learning Target: I can analyze the shape and distribution of a box plot.
1

Which of the following boxplots has a lower outlier?

1

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

1

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

Learning Target: I can use the Central Limit Theorem to estimate the mean of a population.
1

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

Learning Target: I can calculate standard deviation to determine the spread of a data set.
0

Here are two samples with a mean of 50.
Which Histogram has a greater standard deviation? Explain why?

1

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

1

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

1

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