For a study, a researcher collected 200 leaves from oak trees. After measuring the lengths of the leaves, in cm, she produced the following cumulative frequency graph.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
For a study, a researcher collected 200 leaves from oak trees. After measuring the lengths of
the leaves, in cm, she produced the following cumulative frequency graph.
200
180
160
140
120
100
80
60
40
20
7
8
9
10
1
12
length of leaf (cm)
(a)
Write down the median length of these leaves.
(b)
Write down the number of leaves with a length less than or equal to 8 cm.
The researcher finds that 10% of the leaves have a length greater than k cm.
(c)
(i)
Use the graph to find the value of k.
(ii)
Before measuring, the researcher estimated k to be approximately 9.5 cm. Find
the percentage error in her estimate.
cumulative frequency
Transcribed Image Text:For a study, a researcher collected 200 leaves from oak trees. After measuring the lengths of the leaves, in cm, she produced the following cumulative frequency graph. 200 180 160 140 120 100 80 60 40 20 7 8 9 10 1 12 length of leaf (cm) (a) Write down the median length of these leaves. (b) Write down the number of leaves with a length less than or equal to 8 cm. The researcher finds that 10% of the leaves have a length greater than k cm. (c) (i) Use the graph to find the value of k. (ii) Before measuring, the researcher estimated k to be approximately 9.5 cm. Find the percentage error in her estimate. cumulative frequency
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 5 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman