Current location - Loan Platform Complete Network - Big data management - A school in grade 9 to carry out "CD-ROM action" publicity activities, the number of people in each class to participate in the activities of the statistical results of the following table, for this g
A school in grade 9 to carry out "CD-ROM action" publicity activities, the number of people in each class to participate in the activities of the statistical results of the following table, for this g
A school in grade 9 to carry out "CD-ROM action" publicity activities, the number of people in each class to participate in the activities of the statistical results of the following table, for this group of statistics, the following said
A.

According to the average, median, extreme deviation, the plurality of the calculation can be calculated to make a judgment

The average refers to the sum of all the data in a set of data and then divided by the number of the data, therefore, the average of this set of data is:

. The mean of this set of data is:

.

The median is the number in the middle (the average of the middle two numbers) of a set of data after rearranging them from smallest to largest (or largest to smallest). Thus the data is rearranged as 52, 54, 58, 60, 62, 62, ∴ the median is the average of the 3rd and 4th numbers after arranging them from smallest to largest: 59.

According to the definition of the difference between the largest and the smallest data in a set of data is called the extreme deviation of this set of data, the extreme deviation of this set of data is:

62-52

The plurality is the data that occurs the most times in a set of data, and in this set of data, the data that occurs the most times is 62, so the plurality of this set of data is 62.

To sum up, the statement is correct: the mean is 58. so choose A.