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Which measure of variation is appropriate when using the mean and which is appropriate when using the median?
When using the mean: the variance or standard deviation. When using the median: the range or inter-quartile range.
What is a quartile in a math problem?
A quartile is a given section in a range of data. To find the quartile, you must first find the median. Then find the "median of the median", using these to separate your data into sections, giving you a total of four sections of data.
How do you calculate the median using Excel?
The median can be calculated using the Median function. Assuming the values you wanted the median of were in cells B2 to B20, you could use the function like this: =MEDIAN(B2:B20)
How do you get the answer using median?
Put all the numbers in order and the median is the number that is in the middle!
How do you calculate standard deviation using median?
You cannot because the standard deviation is not related to the median.
What are the criteria for choosing measure of central tendency and measure of variation?
Central tendency is measured by using the mean, median and mode of a set of numbers. Variation is measured by using the range, variance and standard deviation of a set of numbers.
What is a sentence using the word median?
"Finding the median of a group of numbers usually isn't very challenging"
Describe the range of numbers that can be represented by a 8 bit number using two complement?
-128 to 127
How do you find graph median by using standard deviation?
You cannot because the median of a distribution is not related to its standard deviation.
What is the efficiency of the median finding algorithm using divide and conquer in comparison to other algorithms for finding the median?
The efficiency of the median finding algorithm using divide and conquer is generally better than other algorithms for finding the median. This is because the divide and conquer approach helps reduce the number of comparisons needed to find the median, making it more efficient in most cases.
Can you give me a sentence using the word locate?
"How can I locate a person on a grid map?"
When is it helpful to sort data by using a stem and leaf plot?
If you have between about 15 and 50 pieces of data, a stem-and-leaf plot is not tedious to make and will illustrate the distribution of the values. Once you have made a stem-and-leaf plot, it is easy to locate the median.
