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P.O.D. #6 - PowerPoint PPT Presentation


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If you hear a voice within you say “you cannot paint ,” then by all means paint and that voice will be silenced . – Vincent Van Gogh. P.O.D. #6. basic. advanced. Use a box-and-whisker plot to represent the following set of data. (This is the same data as yesterday’s POD.).

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slide1

If you hear a voice within you say “you cannot paint,” then by all means paint and that voice will be silenced.

–Vincent Van Gogh

slide2

P.O.D. #6

basic

advanced

Use a box-and-whisker plot to represent the following set of data. (This is the same data as yesterday’s POD.)

Use a box-and-whisker plot to represent the following set of data.

(This is the same data as yesterday’s POD.)

{3, 5, 1, 9, 2, 4, 3, 3, 6, 11, 12}

{1, 2, 5, 9, 2, 4, 3, 3, 6, 11, 12, 8}

1, 2, 3, 3, 3, 4, 5, 6, 9, 11, 12

1, 2, 2, 3, 3, 4, 5, 6, 8, 9, 11, 12

Min =

Q1 =

Q2 =

Q3 =

Max =

1

3

4

9

12

Min =

Q1 =

Q2 =

Q3 =

Max =

1

2.5

4.5

8.5

12

slide4

Bar Graph

Show the number of items in specific categories

  • Categories on horizontal axis
  • Quantity on vertical axis
  • Space separating the bars
slide5

Box-and-Whisker Plot

Show measures of variation for a set of data

  • Should be drawn above the number line
  • Used for numerical data
slide6

Circle Graph

Compare parts of the data to the whole

  • Used for categorical data
  • Percentages must add up to 100%
slide7

Double Bar Graph

Compare two sets of categorical data

  • Categories on horizontal axis
  • Quantity on vertical axis
  • Space separating pairs of bars
slide8

Histogram

Show frequency of data divided into equal intervals

  • Intervals on horizontal axis
  • Quantity on vertical axis
  • No space between bars
  • Used for numerical data
slide9

Line Graph

Show change over a period of time

  • Time on horizontal axis
  • Quantity on vertical axis
  • A line connects each data point to the next data point
slide10

Line Plot

Show frequency of data with a number line

  • Draw a dot or “x” above the line for each piece of data.
  • Used for numerical data
slide11

Example:

Select an appropriate display to show the number of boys of different age ranges that participate in athletics

Intervals

Quantity

Histogram

  • x-axis = age ranges
  • y-axis = number of boys
slide12

Example:

Select an appropriate display to show the percent of students in each grade at a middle school.

Part of a whole

Circle Graph

  • Each section is one of the grades at the middle school
slide13

Example:

The number of home runs hit by each player on a high school baseball team is shown in the list below. Select an appropriate display to show the frequency of data.

Number of Home Runs: 10, 15, 5, 10, 12, 5, 12, 12, 4, 5, 10, 7.

Numerical Data

Line Plot

  • Number line = home runs
slide14

Example:

Select an appropriate display to show the median age of member in a community band.

Measure of Variation

Box-and-Whisker Plot

  • Number line = ages
slide15

Example:

Select an appropriate display to show the number of people who have different kinds of pets.

Quantity

Categories

Bar Graph

  • x-axis = categories
  • y-axis = number of people
slide16

2 sets of data

Example:

Select an appropriate display to compare the number of men versus women that chose specific careers.

Quantity

Categories

Double Bar Graph

  • x-axis = career choices
  • y-axis = number of people
slide17

Example:

Select an appropriate display to show the resale value of a person’s car over time.

Change over time

Line Graph

  • x-axis = time (years)
  • y-axis = value of car