Question

An illustration shows a bar graph with four bars extending vertically from the x-axis. The horizontal axis ranges from 10 to 13 in increments of 1 and the vertical axis ranges from 0 to 5 in increments of 1. The bar placed at 10 on the x-axis extends to 2 on the y-axis. The bar placed at 11 on the x-axis extends to 4 on the y-axis. The bar placed at 12 on the x-axis extends to 4 on the y-axis. The bar placed at 13 on the x-axis extends to 2 on the y-axis.

What are the values of the mean, median, and spread for the dataset shown in the bar graph?
The mean = ___.
The median = ___.
The spread = ___.

Answer 1

[AI-generated answer — Bot GPT 3.5]

The mean is calculated by adding up all the values and dividing by the total number of values. In this case, the values are 2, 4, 4, and 2, so the mean is (2+4+4+2)/4 = 3.

To find the median, we first need to arrange the values in ascending order: 2, 2, 4, 4. Since there is an even number of values, the median is the average of the two middle values. In this case, the median is (2+4)/2 = 3.

The spread, also known as the range, is calculated by subtracting the minimum value from the maximum value. In this case, the range is 4-2 = 2.