13. Calculate the range, the variance, and the standard deviation for each set of data.
a) the ages of people at a family reunion:
2, 2, 7, 10, 16, 17, 39, 42, 44, 45, 49, 50,
51, 56, 68, 70, 77

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

i do not know the answer

step-by-step explanation:

the answer is two. hope this !

the answer is 99.