The stem and leaf plot shows kilometers walked by participants in a charity benefit walk. Use it to answer the question
12|3 3 6 7 9 9
13| 1 1 4 5 5
14| 0 0 2 3 3 8 8 9
15| 2 2 2 2 2 3 5 5 7
16| 4 5 5 9 9
17|3 5
How many people participated in the walk? Exactly 35 people participated in the walk.
How many of the walkers traveled more than 14 kilometers? About 16-22 people traveled more than 14 kilometers.
Please check my answer or at least suggest a source to help me.
OK HERE YOU GO MY BEAUTIFUL CHILDREN!
13. I chose bar graphs because I feel that it would be accurate. And could start it from zero counting by fives one up.
14. We are given high temperature in her city for 7 days in a row.
First day it is 70 degrees.
Second day it is 78 degrees.
Third day it is 85 degrees.
Fourth day it is 73 degrees.
Fifth day it is 65 degrees.
Sixth day it is 78 degrees.
Seventh day it is 89 degrees.
We can make a histogram to show that the temperature doesn't seem quite so consistent.
15. A. 35 participants
B. I counted 22 walkers above 14. Two did exactly 14 so they do not count.
16. A. Deduct the lowest from the highest quantity. So you would do this -12,3+17,5
B. 5,2
I counted 22. walkers above 14. Two did exactly 14 so they do not count.
(a) 35 participants
(b) 22 participants traveled more than 14 km.
Step-by-step explanation:
Given:
(a)
The stem-leaf plot is given as:
12| 3 3 6 7 9 9
13| 1 1 4 5 5
14| 0 0 2 3 3 8 8 9
15| 2 2 2 2 2 3 5 5 7
16| 4 5 5 9 9
17| 3 5
The total number of numbers on the leaf side gives the total number of participants.
So, the number of participants is equal to the total number of elements on the leaf part. The total number of elements on the leaf part is 35.
Therefore, the total number of participants is 35.
(b)
Given:
12| 3 3 6 7 9 9
13| 1 1 4 5 5
14| 0 0 2 3 3 8 8 9
15| 2 2 2 2 2 3 5 5 7
16| 4 5 5 9 9
17| 3 5
One element of the stem part and one part of leaf part is represented as:
12 | 3 means 12.3 km
So, the number of walkers traveling more than 14.0 km is the list of all numbers greater than 14.0 km. Let us write all the numbers which are greater than 14.0 km. The numbers are:
14 | 2 3 3 8 8 9 = 6 participants
15 | 2 2 2 2 2 3 5 5 7 = 9 participants
16 | 4 5 5 9 9 = 5 participants
17 | 3 5 = 2 participants
Therefore, the total number is the sum of all the above which is equal to:
= 6 + 9 + 5 + 2 = 22 participants
Also can someone help me these other two questions?
Describe how to find the range of the data set.
Find the range.
I really want to get it right all i need is for someone to either check my answer or at least suggest a source to help me.