Mean median The hourly rates of a sample of 70 contractual workers from differentmanufacturing company are shown below in a frequency distribution table.No. of workersHourly rates30-3233-3536-3839-4142-4445-4748-501020159.4Calculate the followinga. Mean xb. Median (x)c. Mode(£)d. Mean Deviation ( MD)e. Variance (s²)f. Standard Deviation (s)g. Coefficient of Variation (CV)h. Pearsonian coefficient of skewness (SK), indicate the skewness of the curve.i. Measure of Kurtosis (Ku), Classify the type of curve.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Mean median

The hourly rates of a sample of 70 contractual workers from different
manufacturing company are shown below in a frequency distribution table.
No. of workers
Hourly rates
30-32
33-35
36-38
39-41
42-44
45-47
48-50
10
20
15
9.
4
Calculate the following
a. Mean x
b. Median (x)
c. Mode(£)
d. Mean Deviation ( MD)
e. Variance (s²)
f. Standard Deviation (s)
g. Coefficient of Variation (CV)
h. Pearsonian coefficient of skewness (SK), indicate the skewness of the curve.
i. Measure of Kurtosis (Ku), Classify the type of curve.

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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