For which set of data will the mean, the median and the mode all be equal?Group of answer choices1, 2, 5, 71, 1, 2, 51, 1, 21, 2, 5, 5, 8, 9

The mean, median, and mode will all be equal for the set of data 1, 1, 2.

Here's why:

1. Mean: The mean is the average of all numbers in the set. To find the mean, you add up all the numbers and then divide by the number of numbers. (1+1+2)/3 = 1.33

2. Median: The median is the middle number when the numbers are listed in numerical order. If there is an even number of numbers, the median is the average of the two middle numbers. In this case, the numbers in order are 1, 1, 2. The median is 1.

3. Mode: The mode is the number that appears most frequently. In this case, the number 1 appears twice, more than any other number, so the mode is 1.

So, for the set of data 1, 1, 2, the mean, median, and mode are all 1.