Question
In: Statistics and Probability
2. Discuss why the range is an unstable measure of variability and when the interquartile range...
2. Discuss why the range is an unstable measure of variability and when the interquartile range may be preferred if the distribution of a variable is skewed?
Solutions
Expert Solution
TOPIC: Disadvantages of range and Use of the Inter-quartile range(IQR).
orchestra answered 2 years agoRelated Solutions
Discuss the advantages and disadvantages for the interquartile range and standard deviation in describing the variability...
Discuss the advantages and disadvantages for the interquartile
range and standard deviation in describing the variability present
in a distribution of scores.
Describe the relation between scales of measurement and measures of variability (e.g., interquartile range and standard...
Describe the relation between scales of measurement and measures
of variability (e.g., interquartile range and standard
deviation.)
discuss the sensitivity of outliers for mean, median, interquartile range, range, variance and standar deviation
discuss the sensitivity of outliers for mean, median,
interquartile range, range, variance and standar deviation
1.What is a quantitative measure of variability? 2. Describe how the range and standard deviation uniquely...
1.What is a quantitative measure of variability?
2. Describe how the range and standard deviation uniquely
identifies the variability of a distribution.
3. How does the presence of one or more outliers influence the
range and standard deviation?
4. Create a collection of 7-12 numbers of your choice (e.g., 4,
9, 13, 2, 7, 8, 6, 10). Find the following quantitative measures of
variability:
Range
Sample Variance
Sample Standard Deviation
Show all work. Make sure that the numbers that you...
What is Interquartile Range? (stats)
What is Interquartile Range? (stats)
1. Define variability. 2. What are the strengths and limitations of the range? 3. When computing...
1. Define variability.
2. What are the strengths and
limitations of the range?
3. When computing a standard
deviation, why are the deviations from the mean squared?
4. Why is the square root taken when
computing the standard deviation?
5. What are the three measures of
variability? Which is the most commonly used?
6. Compute the range of the following
student’s test scores: 39, 64.5, 54, 49, 56, 61, 58
7. The local B League baseball team is
trying out...
1. The sample range is useful as a measure of: variability association skewness bias central tendency...
1. The sample range is useful as a measure of:
variability
association
skewness
bias
central tendency
2. 150, 151, 154, 155, 155, 155, 155, 156, 156,156, 157,157,
158,158, 162,162,164
If we draw a boxplot, where should the lower whisker be?:
150
164
151
162
3. 40 independent measurements of the boiling point of a certain
liquid were found to have a sample average of 950C, and
sample variance of 20C. The formula for converting from
a Celsius temperature x to...
What are the differences among the various measures of variation, such as the range, interquartile range,...
What are the differences among the various measures of
variation, such as the range, interquartile range, variance,
standard deviation, and coefficient of variation, and what are the
advantages and disadvantages of each
Calculate the range, interquartile range, variance, standard deviation and coefficient of variation.
A sample has data values 27, 25, 20, 15, 30, 34, 28, 25. Calculate the range, interquartile range, variance, standard deviation and coefficient of variation.
Briefly explain the difference between range, interquartile range, and standard deviation.
Briefly explain the difference between range, interquartile
range, and standard deviation.
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