Final answer:
a) median. The correct answer is the median, which is the central value in an ordered set of data with an equal number of data points above and below it.
Step-by-step explanation:
The correct answer is option
When all the values in a data set are arranged in order from least to greatest, the median is the central value that has an equal number of data points above and below it. For an odd number of values, it is simply the middle number. However, for an even number of values, it is the average of the two middle numbers.
This property makes the median a robust measure of central tendency, especially useful when the data set contains outliers. In comparison, the mean (or average) is calculated by summing all values and dividing by the total number of values. The mode is the value or values that occur most frequently in the data set.
The median is a number that measures the center of the data. It is the value that is in the middle when all the values in a data set are written in order from least to greatest. The median divides the data into two halves, with an equal number of values below it and an equal number of values above it.
For example, if you have the data set: 2, 5, 7, 9, 12, the median would be 7 because it is the middle value when the data are arranged in ascending order.