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Coefficient of Variation and Standard Deviation are two measures of dispersion or spread among the data values. Let's say we have two different sets of data. Explain which of the two mentioned measures can more accurately find out which of these two data sets has more spread or variability in its data values. You can select 5 values for each of the two data sets and practically calculate the standard deviation and coefficient of variation for each data set to clarify your explanation.
A normal random variable with a mean of $65.16 and a standard deviation of $10.00. What proportion of the households spent between $40.00 and $50.00.
Construction of histogram and pie chart for continuous data
Weights are distributed normal with a mean of 132 pounds and a standard deviation of 27.4 pounds. In a random sample of 150, how many of them would be expected to weigh between 100 and 115 pounds?
Both days have sample standard deviations of 3.4. Is the average mean of size different from day 1 to day 2?
sample proportion and probability based on normal distribution.a nationwide study in 2003 indicated that about 60 of
In a normal distribution
One of the children, though, fails to solve the problem so the researcher has an undetermined score. What is the best measure of central tendency for these data?
Each student in an experiment was told to look at 100 cars and count the number of people wearing the seat belts. The mean score for the class was found to be 44, and standard deviation =7
The Smoky Bear Trucking Company claims the average weight of a fully loaded moving van is 12,000 lb. The highway patrol decides to check this claim.
The size of the home (reported below in thousands of square feet) increases the selling price (reported in $ thousands) also increases?
a local authority installs 2000 electric lamps. the life of lamps in hours x follows a normal distribution where
Bbutton to determine whether the design of the control panel was contributing to the high rate of accidents in the plant. The resulting scores were as follows:
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