MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The following stem-and leaf display of the dividend yields ($) for common stocks
Stem-and-Leaf Display
N = 45 Leaf Unit = 1.0
5 2 33444
11 2 668899
(14) 3 00112223344444
9 3 56778899
12 4 0002344
5 4 66789
The table below is based on the Stem and leaf diagrams showing dividend yields ($) for
common stocks
Dividend Yielded ($) Frequency
20-24 5
25-29 6
30-34 14
35-39 x
40-44 7
45-49 5
i. Use the stem and leaf diagram in 3a) to determine the value of x.
ii. Using the table above to calculate
a) the sample mean of the dataset.
b) the
c) the sample variance of the dataset.
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