Answer:
The Mean is 17.5
The median is 19
The mode is 19
The range is 22
Step-by-step explanation:
The mean is the average where you add all the numbers and then divide the sum by the number of them
The median is the middle value in the list of numbers arranged from smallest to greatest
The mode is the most repeated number
The range is the difference between the greatest and the smallest numbers
From the figure the numbers are:
6, 10, 10 , 11, 11, 13, 18, 19, 19, 19, 20, 20, 21, 23, 23, 27, 28
- Find their sum
∵ Their sum = 298
∵ They are 17 numbers
∵ Mean = sum ÷ number
∴ Mean = 298 ÷ 17 = 17.529411
- Round it to the nearest tenth
∴ Mean = 17.5
∵ The median is the middle number
- The middle of 17 numbers is 9th number because (17+1) ÷ 2 = 9,
that means before it 8 numbers and after it 8 numbers
∵ The value of the 9th number is 19
∴ Median = 19
∵ The mode is the most repeated number
∵ 19 is repeated 3 times
∵ No other number repeated more than 3 times
∴ Mode = 19
∵ The smallest number = 6
∵ The greatest number = 28
∵ Range = greatest number - smallest number
∴ Range = 28 - 6
∴ Range = 22
