Question

Статистические данные и их характеристики: среднее арифметическое, мода, медиана, размах. Урок 1 Найди среднее арифметическое чисел. 7⠀ 8⠀ 11⠀ 15⠀ 15⠀ 19 Ответ:. Назад Проверить ​

Answer 1

Ответ:

12,5

должно быть правильно

Answer 2

The statistical measures you mentioned are commonly used to describe and analyze data. Let's go through each of them:

Mean (Average):

The mean, also known as the average, is calculated by summing up all the values in a dataset and dividing the sum by the total number of values. It represents the central tendency of the data. To find the mean of the numbers 7, 8, 11, 15, 15, and 19, you would add them up and divide by 6 (since there are 6 numbers in the dataset). The mean in this case is 12.5.

Mode:

The mode is the value that appears most frequently in a dataset. In the given dataset of 7, 8, 11, 15, 15, and 19, the mode is 15 because it appears twice, which is more than any other number in the dataset.

Median:

The median is the middle value in a dataset when the values are arranged in ascending or descending order. If there is an even number of values, the median is the average of the two middle values. In the given dataset, when arranged in ascending order, we have 7, 8, 11, 15, 15, and 19. The median is 13, which is the average of the two middle values (11 and 15).

Range:

The range is the difference between the maximum and minimum values in a dataset. In the given dataset, the minimum value is 7 and the maximum value is 19. Therefore, the range is 12 (19 - 7).

These statistical measures provide valuable insights into the characteristics of a dataset, helping us understand its central tendency, variability, and distribution.