Question

2. Kris read each day of her vacation. The following is a list of how many pages she read each day:

9a
ya
428
105, 39, 83, 54, 84, 75, 52, 96
a. Create a stem-and-leaf plot to represent this data.
b. Create a box plot to represent this data.
C.
d.
What are the upper and lower quartiles?
Which representation gives you more information about Kris' data? Why?
width x Write an expression for: 002

Answer 1

Explanation:

a. The stem-and-leaf plot for Kris's data is:

0 | 9

1 | 05 39 54 75 83 84

4 | 28 28

9 | 6

b. The box plot for Kris's data is:

| 0 1 2 3 4 5 6 7 8 9

---- | ---- ---- ---- ---- ---- ---- ---- ---- ---- ----

10 | |

20 | |

30 | |

40 | |_____

50 | |___ |_

60 | |

70 | |______ |

80 | |___| |___|

100 | |

c. The lower quartile is 54 and the upper quartile is 84.

d. The box plot gives more information about Kris's data because it provides a visual representation of the distribution of the data, including measures of central tendency and variability. The stem-and-leaf plot is useful for showing the individual data points, but it can be difficult to see the overall pattern in the data.

e. The expression for 002 is simply 2, since leading zeros do not change the value of a number.