Answer:

Introduction: In statistics, there are three measures of central tendency, namely, mean, median, and mode. They are used to describe the central location of a data set.

Equal Frequency: When all observations occur with equal frequency, it means that each data point appears the same number of times in the data set.

Median: The median is the middle value of a data set. When all observations occur with equal frequency, the data set has an even number of observations, and there is no middle value. Therefore, the median does not exist.

Mode: The mode is the value that occurs most frequently in a data set. When all observations occur with equal frequency, each value occurs the same number of times, and there is no value that occurs more frequently than others. Therefore, the mode does not exist.

Mean: The mean is the sum of all values in a data set divided by the number of observations. When all observations occur with equal frequency, the mean is equal to the sum of all values divided by the number of observations. Since each value occurs the same number of times, the sum of all values is equal to the value multiplied by the number of observations. Therefore, the mean is equal to the value.

Conclusion: When all observations occur with equal frequency, the median and mode do not exist, while the mean is equal to the value.

Option B) Mode

Because mode is the highest frequency in the data that is given .
when Everything in the data appears with same /equal frequency then it is difficult to determine the mode .