Mentally
As they are numbers which you can do mental math with since they are whole numbers.
Answer:
8
Step-by-step explanation:
8+8=16
or
16 divided by 2= 8
Answer: The second option (purple model)
Step-by-step explanation: It is that option because there were 80 toys collected which is 100% and then we do not what the 30% is.
The "mean" of a group of numbers is also called their "average".
To calculate the mean, add up all the numbers, then
divide the sum by the number of items on the list.
Step #1: Addum up: 3+7+2+9+4+7+3+7+5+2 = 49
Step #2: Count the number of items on the list: I count 10 .
Step #3: Divide the sum by the number of items on the list.
49 / 10 = 4.9
The mean (average) of the numbers on that list is 4.9 .
