Mathematics
Grade10
Easy
Question
Find the mean and median of the following data.
10, 10, 20, 40, 70, 80
- 40, 20
- 30, 20
- 40, 30
- 40, 40
Hint:
Mean is the most commonly used measure of central tendency. It actually represents the average of the given collection of data. It is applicable for both continuous and discrete data.Generally median represents the mid-value of the given set of data when arranged in a particular order.
The correct answer is: 40, 30
Mean = 
= 40
Median:
th and + 1th observations mean
3rd and 4th
Hence,the correct option is (c).
The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest.
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