1. Construct a stem and leaf plot for these 50 measurements 1 4.9 28 3.6 25 45 3.5 37 41 4.9 9 2.1 3,5 4.0 37 27 4.0 44 3.7 42 B 62 25 29 28 51 1.8 56 22 3.4 5 3.6 51 4.8 16 36 6.1 47 39 3.9 3 5.7 3.7 4.6 40 56 49 42 31 39 . Describe the shape of the data distribution. Do you see any outliers? .Use the stem and leaf plot to find the smallest observation

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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56
Exercises:
1. Construct a stem and leaf plot for these
50 measurements
2 Refer to exercise 1. Construct a relative
frequency histogram for the data.
a. Approximately how many class intervals should
you use?
3.1 49 28 3.6 25 45 35 3.7 41 49
3.7
29
2.1
3.5
37
4.0
2.9
4.8
4.6
44
42
3.B
25
43
2.5
5.1
3.7
5.1
1.6
3.6
4.0
56
1.8
6.1
4.9
b. Suppose you decide to use classes starting at 1.6
with a class width of 5 (i.c., 1.6 to <21, 2.1 to
<2.6). Construct the relative frequency histogram
for the data.
56
3.6
5.7
22 3.4
39
3.9
3.1
3.9
4.7
42
c. What fraction of the measurements are less than
5.17
a. Describe the shape of the data distribution. Do you
see any outliers?
b. Use the stem and leaf plot to find the smallest
observation.
d. What fraction of the measurements are larger than
3.6?
c. Find the eighth and ninth largest observations.
e. Compare the relative frequency histogram with the
stem and leaf plot in Exercise 1.18. Are the shapes
similar?
57
3. The red blood cell count of a healthy person was measured on each of 15 days.
The number recorded is measured in 10 cells per microkaer
a. Use an appropriate graph to describe the data.
b. Describe the shape and location of the red blood cell
5.4
5.2
5.3 5.4
5.0
5.2
5.2 5.1
5.5
5.3
counts.
c. If the person's red blood cell count is measured
5.2
today as 5.7 x 10/ulL, would you consider
5.3
4.9
5.4
5.2
this unusual? What conclusions might you
draw?
58
S0R
425
57B 60
232
232un3
m-2 G7
Transcribed Image Text:56 Exercises: 1. Construct a stem and leaf plot for these 50 measurements 2 Refer to exercise 1. Construct a relative frequency histogram for the data. a. Approximately how many class intervals should you use? 3.1 49 28 3.6 25 45 35 3.7 41 49 3.7 29 2.1 3.5 37 4.0 2.9 4.8 4.6 44 42 3.B 25 43 2.5 5.1 3.7 5.1 1.6 3.6 4.0 56 1.8 6.1 4.9 b. Suppose you decide to use classes starting at 1.6 with a class width of 5 (i.c., 1.6 to <21, 2.1 to <2.6). Construct the relative frequency histogram for the data. 56 3.6 5.7 22 3.4 39 3.9 3.1 3.9 4.7 42 c. What fraction of the measurements are less than 5.17 a. Describe the shape of the data distribution. Do you see any outliers? b. Use the stem and leaf plot to find the smallest observation. d. What fraction of the measurements are larger than 3.6? c. Find the eighth and ninth largest observations. e. Compare the relative frequency histogram with the stem and leaf plot in Exercise 1.18. Are the shapes similar? 57 3. The red blood cell count of a healthy person was measured on each of 15 days. The number recorded is measured in 10 cells per microkaer a. Use an appropriate graph to describe the data. b. Describe the shape and location of the red blood cell 5.4 5.2 5.3 5.4 5.0 5.2 5.2 5.1 5.5 5.3 counts. c. If the person's red blood cell count is measured 5.2 today as 5.7 x 10/ulL, would you consider 5.3 4.9 5.4 5.2 this unusual? What conclusions might you draw? 58 S0R 425 57B 60 232 232un3 m-2 G7
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