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Math Fundamentals
Descriptive Statistics

1
Displaying Information

Problem  1
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Construct scatter diagrams for odd numbers and the sequence of squares using the tables shown.

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Stefanie cc
Stefanie
Preston cc
Preston
Cynthia cc espanol spanish
Cynthia

2
Introduction to Probability

Problem  1

Suppose you draw a card out of a \(52\)-card deck. You observe the color of the card in your hand. Give the sample space.

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Joshua cc
Joshua
Molly S. cc
Molly S.
Cynthia espanol spanish
Cynthia
Problem  2

Inside a jar are six ping-pong balls, each showing numbers \(1\) through \(6\). Give the sample space of the ping-pong balls you can select.

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Joshua cc
Joshua
Molly S. cc
Molly S.
Cynthia espanol spanish
Cynthia
Problem  3
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Suppose you see five birds in a tree. Three of the birds are yellow and two are red. If one of them flew away, what is the probability that

  1. it is yellow?

  2. it is red?

  3. it is brown?

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Joshua cc
Joshua
Molly S. cc
Molly S.
Cynthia espanol spanish
Cynthia
Problem  4
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One card is drawn from a regular deck of \(52\) cards. Find the probabilities associated with the following events.

  1. The card is a \(5\).

  2. The card is a jack or a queen.

  3. The card is a spade.

  4. The card is not a \(5\).

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Julieta cc
Julieta
Joshua cc
Joshua
Molly S. cc
Molly S.
Cynthia espanol spanish
Cynthia

3
Mean, Median, and Mode

Problem  1
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Enrollment in college over a five-year period is shown by the following numbers. Find the mean enrollment over the five-year period. \[16,911,000\quad 17,272,000\quad 17,487,000\] \[17,759,000\quad 18,248,000\]

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Mr. Perez cc
Mr. Perez
Joshua cc
Joshua
Lauren cc
Lauren
Cynthia espanol spanish
Cynthia
Problem  2
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A math class with \(18\) students had the grades shown below on their first test. Find the mean, the median, and the mode.
\(77 \quad 87 \quad 100 \quad 65 \quad 79 \quad 87 \quad 79 \quad 85 \quad 87\\ 95 \quad 56 \quad 87 \quad 56 \quad 75 \quad 79 \quad 93 \quad 97 \quad 92\)

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Lauren cc
Lauren
Mr. Perez cc
Mr. Perez
Aaron cc
Aaron
David cc espanol spanish
David

4
Circle Graphs

Problem  1
practice icon

The pie chart shows the market share for different digital movie companies.

  1. How many people in the survey stream digital movies from Netflix?

  2. How many people stream their digital movies from Apple and Comcast combined?

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Stephanie cc
Stephanie
Joshua cc
Joshua
Cynthia espanol spanish
Cynthia
Mr. Perez cc
Mr. Perez
Problem  2
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A recent study found that Americans spend just over six hours per day on social media sites. Construct a pie chart that shows the amount of time in a day spent on social media.

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Mr. Perez cc
Mr. Perez
Joshua cc
Joshua
Molly S. cc
Molly S.
Cynthia espanol spanish
Cynthia
Problem  3
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Construct a pie chart from the information in the table.

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Stephanie cc
Stephanie
Joshua cc
Joshua
Mr. Perez cc
Mr. Perez
Cynthia espanol spanish
Cynthia