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To find the mean, add up all the numbers and divide by the number of numbers • To find the median, following frequency distribution was obtained
Example 2 15 Find the mean deviation from the A M for the following distribution Class interval 10–20 20–30 30–40 40–50 50–60 Frequency
Example: The following table gives the frequency distribution of the number of orders received each day during the past 50 days at the office of a mail-order
The following frequency distribution of marks has mean 4 5 (a) Calculate an estimate for the standard deviation of the lengths of the fish
Long Answer Type Example 5 Calculate mean, variation and standard deviation of the following frequency distribution: Classes Frequency
The mean for grouped data is obtained from the following formula: Given the following frequency distribution, calculate the arithmetic mean Marks : 64
n = total frequency c = width of the class interval Example 2 Given the following frequency distribution, calculate the arithmetic mean
Find the class width: Determine the range of the data and divide this by the Make a frequency distribution for the following data, using 5 classes:
condensation of data set into a frequency distribution and visual presentation are Calculate the arithmetic mean for the following data given below:
For finding the mean of grouped data di's are deviations from a of (A) Lower limits of the classes Consider the following frequency distribution: