Chapter 1 Review Exercises

Last updated almost 2 years ago

10 questions

Required

5

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1

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1

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1

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1

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3

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1

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3

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1

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3

Library

Chapter 1 Review Exercises

Last updated almost 2 years ago

10 questions

Required

5

Age at Death
State of birth
Age at Inauguration
Name
Political Party

Categorical

Required

1

Work with a partner.
1. Use statsmedic.com/applets. Enter both the frequency table and the bar chart in the 'show your work' area.
2. Then describe what you see, using the four letters. Be sure to use the words for each letter in your description.

Required

1

Describe two changes you notice from 2012 to 2013:

Required

1

Explain how the bar chart is misleading. What does it make you think when looking at the data? How could it be fixed?

Required

1

Indiana
Maine
Connecticut

State with the least variability
State with the most variability
State with the strongest right skew

Required

3

Required

1

Here is the data used to create the histogram in #6:
11   12   23   15   14   15   14   15
10   14   15   9   11   13   25   11
13   13   12   20   17   23   11   12
12   11   20   20   12   12   19   13
15   10   14   11   7   17   13   18  

Work with a partner to enter the data into statsmedic.com/applets (1 quantitative variable single group)
Find the following:
range = _______ 
IQR = _______ 
Upper limit = _______ 
Lower limit = _______ 
Are there any outliers? Yes or No _______   
If so, how many outliers are there?  _______ 
Interpret the standard deviation:_______

Required

3

Required

1

How many dots are less than the red dot?  _______ 
How many dots are there total?  _______ 
What is the percentile for the red dot? _______ 

Required

3

Age at Death
State of birth
Age at Inauguration
Name
Political Party

Categorical
Quantitative

Work with a partner.
1. Use statsmedic.com/applets. Enter both the frequency table and the bar chart in the 'show your work' area.
2. Then describe what you see, using the four letters. Be sure to use the words for each letter in your description.

Describe two changes you notice from 2012 to 2013:

Explain how the bar chart is misleading. What does it make you think when looking at the data? How could it be fixed?

Indiana
Maine
Connecticut

State with the least variability
State with the most variability
State with the strongest right skew
State that appears to have an outlier or two.

Words and music (1.5, 1.6) For a project in their statistics class, Alex and Tempe studied the impact of different types of background music on students’ ability to remember words from a list they were allowed to study for 5 min.
Here is a histogram that displays the data on how many words one group of students who listened to Beethoven’s Fifth Symphony were able to remember.
What is the shape of the histogram? Use this to decide the relationship between the mean and the median, ex. which one is bigger?
Which number is the median and which is the mean?
How do you know?
Select two answers.

Here is the data used to create the histogram in #6:
11   12   23   15   14   15   14   15
10   14   15   9   11   13   25   11
13   13   12   20   17   23   11   12
12   11   20   20   12   12   19   13
15   10   14   11   7   17   13   18  

Work with a partner to enter the data into statsmedic.com/applets (1 quantitative variable single group)
Find the following:
range = _______ 
IQR = _______ 
Upper limit = _______ 
Lower limit = _______ 
Are there any outliers? Yes or No _______   
If so, how many outliers are there?  _______ 
Interpret the standard deviation:_______

Find three answers that are correct.

How many dots are less than the red dot?  _______ 
How many dots are there total?  _______ 
What is the percentile for the red dot? _______ 

This will not be on the quiz or test. Might be a bonus.
a) Find 120 on the x axis, draw a line up to the graph, then draw a line to the left to find the cumulative relative frequency. This is the percentile.

b) find the percentile for the median, Q1 and Q3 on the y axis, then draw a line over to the graph, then draw a line down to the x axis to find the data value for the median, Q1 and Q3. Use Q3 & Q1 to find the IQR.

Quantitative

State that appears to have an outlier or two.

Words and music (1.5, 1.6) For a project in their statistics class, Alex and Tempe studied the impact of different types of background music on students’ ability to remember words from a list they were allowed to study for 5 min. 
Here is a histogram that displays the data on how many words one group of students who listened to Beethoven’s Fifth Symphony were able to remember.
What is the shape of the histogram? Use this to decide the relationship between the mean and the median, ex. which one is bigger?
Which number is the median and which is the mean?
How do you know? 
Select two answers.

The shape is skewed right, pulling the median higher.

Mean = 13 and Median = 14.3

Mean = 14.3 and Median = 13

The shape is skewed left, pulling the median lower.

The shape is skewed right, pulling the mean higher.

The shape is skewed left, pulling the mean lower.

Find three answers that are correct.

Ana and Catherine's suspicions were correct, the athletes had a faster reaction time, shown by the Upper Quartile for the athletes being less than the Upper Quartile for the other students.

Ana and Catherine's suspicions were correct, the median for the athletes is lower than the median for the other students.

Ana and Catherine's suspicions were not correct, the first quartile for the athletes is lower than the first quartile for the other students.

Ana and Catherine's suspicions were not correct, the athletes did not have a faster reaction time, shown by the Upper Quartile and median being lower than those of the other students.

Ana and Catherine's suspicions were correct, the first quartile for the athletes is lower than the first quartile for the other students.

Ana and Catherine's suspicions were not correct, the median for the athletes is lower than the median for the other students.

Ana and Catherine's suspicions were correct, the athletes had a faster reaction time, shown by the Upper Quartile being greater than the Upper Quartile for the other students.

This will not be on the quiz or test. Might be a bonus.
a) Find 120 on the x axis, draw a line up to the graph, then draw a line to the left to find the cumulative relative frequency. This is the percentile.

b) find the percentile for the median, Q1 and Q3 on the y axis, then draw a line over to the graph, then draw a line down to the x axis to find the data value for the median, Q1 and Q3. Use Q3 & Q1 to find the IQR.

70-75%

Median is about 75

IQR is about 50 minutes

IQR is about 120 minutes

55-60%

Median is about 125

83-85%

Median is about 100

IQR is about 80 minutes

Chapter 1 Review Exercises

Chapter 1 Review Exercises

Work with a partner.1. Use statsmedic.com/applets. Enter both the frequency table and the bar chart in the 'show your work' area.2. Then describe what you see, using the four letters. Be sure to use the words for each letter in your description.

Describe two changes you notice from 2012 to 2013:

Explain how the bar chart is misleading. What does it make you think when looking at the data? How could it be fixed?

Work with a partner.1. Use statsmedic.com/applets. Enter both the frequency table and the bar chart in the 'show your work' area.2. Then describe what you see, using the four letters. Be sure to use the words for each letter in your description.

Describe two changes you notice from 2012 to 2013:

Explain how the bar chart is misleading. What does it make you think when looking at the data? How could it be fixed?

Find three answers that are correct.

Work with a partner.
1. Use statsmedic.com/applets. Enter both the frequency table and the bar chart in the 'show your work' area.
2. Then describe what you see, using the four letters. Be sure to use the words for each letter in your description.

Work with a partner.
1. Use statsmedic.com/applets. Enter both the frequency table and the bar chart in the 'show your work' area.
2. Then describe what you see, using the four letters. Be sure to use the words for each letter in your description.