Carolyn recorded the temperature, in degrees Fahrenheit, at noon on each day last week. The temperatures
are shown in the box below.
77, 72, 81, 82, 77, 75, 69
She will make a stem-and-leaf plot to show the temperatures. Which numbers should Carolyn use for the
stems in her plot?
A 6,7,8
B 1,2,5,7,9
C 1,2,5,6,7,8,9~~~
D 69, 72, 75, 77, 81, 82
tell me if I'm right or wrong! and please explain it to me because i don't know how this is really working i think i have the correct answer.
To create a stem-and-leaf plot, Carolyn needs to determine the stems and leaves based on the given data.
Stems usually represent the tens place of each number, while leaves represent the ones place. In this case, the temperatures are given in degrees Fahrenheit.
So, let's break down the numbers in the data set:
77, 72, 81, 82, 77, 75, 69
The tens place of each number is:
7, 7, 8, 8, 7, 7, 6
From these tens places, the potential stem options are: 6, 7, and 8.
Now let's address the answer choices:
A) 6,7,8 - This choice includes all the potential stem options, so it's a possibility.
B) 1,2,5,7,9 - This option includes numbers that are not present in the given data. Therefore, it is not the correct choice.
C) 1,2,5,6,7,8,9 - This choice includes all the possible stems and some additional numbers that are not present in the given data. Therefore, it is not the correct choice.
D) 69, 72, 75, 77, 81, 82 - This choice includes all the unique numbers in the dataset. Since each stem should only be listed once in a stem-and-leaf plot, this is a possible answer.
The correct answer is either A) 6,7,8 or D) 69, 72, 75, 77, 81, 82.
By analyzing the given data and understanding the concept of stems and leaves in a stem-and-leaf plot, you can determine the correct answer.