The number of patients treated at dr. mccormick’s dentist office each day was recorded for nine days. these are the data: 13, 16, 16, 10, 6, 12, 4, 12, 16. find the mean, median, mode, and range of the data. if necessary, round to the nearest tenth. 13.7, 12, 16, 20 11.7, 12, 16, 12 12, 13.7, 16, 12 11.7, 16, 12, 20

Hi!

Let's start with the mean.

The mean is all the numbers added together, divided by how many numbers there are. 

13+16+16+10+6+12+4+12+16=105
there are 9 numbers so..
105/9 = 11.7

The mean is 11.7 

Find the median. 

The median is the number in the middle of the data set when the numbers are in numerical order.

4, 6, 10, 12, 12, 13, 16, 16, 16

The median is 12. 

Find the mode.

The mode is the number that is repeated the most.

4, 6, 10, 12, 12, 13, 16, 16, 16

The mode is 16

Find the range.

The range is the difference of the smallest number from the biggest number.

16 - 4 = 12

The range is 12

The answer is 11.7, 12, 16, 12 

Hope this helps! :)