What are the values of the mean, median, and spread for the dataset shown in the bar graph?
Bar graph is 10, 11, 12 and 13. The highest two are 11 and 12 at 4.
The mean is calculated by summing all the values and dividing by the total number of values. In this case, the mean is (10 + 11 + 12 + 13) / 4 = 11.5.
The median is the middle value of the dataset when it is ordered from least to greatest. In this case, the median is the average of the two middle numbers, which are 11 and 12. The median is (11 + 12) / 2 = 11.5.
The spread can be calculated by finding the range, which is the difference between the highest and lowest values in the dataset. In this case, the highest value is 13 and the lowest value is 10. The range is 13 - 10 = 3.