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Do adolescent girls eat fruit? We all know that fruit is good for us. Below is a
Chapter 1, Problem 88(choose chapter or problem)
Do adolescent girls eat fruit? We all know that fruit is good for us. Below is a histogram of the number of servings of fruit per day claimed by 74 seventeen-year old girls in a study in \(\text{Pennsylvania.}^{42}\)
(a) With a little care, you can find the median and the quartiles from the histogram. What are these numbers? How did you find them?
(b) Estimate the mean of the distribution. Explain your method clearly.
Equation Transcription:
Text Transcription:
Pennsylvania.^{42}
Questions & Answers
QUESTION:
Do adolescent girls eat fruit? We all know that fruit is good for us. Below is a histogram of the number of servings of fruit per day claimed by 74 seventeen-year old girls in a study in \(\text{Pennsylvania.}^{42}\)
(a) With a little care, you can find the median and the quartiles from the histogram. What are these numbers? How did you find them?
(b) Estimate the mean of the distribution. Explain your method clearly.
Equation Transcription:
Text Transcription:
Pennsylvania.^{42}
ANSWER:
Step 1 of 5
(a)
The histogram shows the distribution of the number of servings of fruit per day claimed by 74 seventeen-year old girls in a study in Pennsylvania. Each bar represents the number of fruits served per day and height of each bar corresponds to the number of subjects.
Let’s convert the histogram into a table form, which contains Number of subjects column and Servings of fruit per day:
No. of subjects |
Servings of fruit per day |
15 |
0 |
11 |
1 |
15 |
2 |
11 |
3 |
8 |
4 |
5 |
5 |
3 |
6 |
3 |
7 |
3 |
8 |