Answer: Option 'b' is correct.
Step-by-step explanation:
Since we have given that
Central tendency which means that is the central value for the data.
There are 3 measures of central tendency as follows:
1) Median -It is used to calculate the middle value of data set.
2) Mean-It calculates the average of all data set by dividing the sum of all observation by total number of observation.
3) Mode - It helps in finding the most occurring score among the given data.
But range is not a measure of central tendency.
Range is defined as difference between Highest and lowest score.
Hence, option 'b' is correct.