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Q: What is the average of 21 17 and 19?

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19

something okay how i meant to know ? :)

19

The average is 18.

The average is 19.

The average is 19.

19 + 24 + 20 = 63/3 = 21 The average of the three numbers is 21.

20.37 is the mean.

Average = 20

21 isn't because 7*3=21.

The average is 15.

-21

2,870,795,128,037,760 or approx 2.871*1015

the average size for a 10 year old boy 4'7 is 19-21 inches

16/19

18 is.

17

Mean is the average of all the numbers.Sum of all the listed numbers = 584Total of all the listed numbers = 25584 / 25 = 23.36Mean = 23.36

-21

According to coach listings on NFL.com, there is an average of 18.4375 coaches listed on the coaching rosters for NFL teams in 2010. Number of coaches ranged from 14 at Dallas to 25 at Minnesota. By team: Ariz 16 Atl 21 Bal 21 Buf 19 Car 16 Chi 18 Cin 17 Cle 19 Dal 14 Den 19 Det 17 GB 20 Hou 16 Ind 19 Jax 20 KC 17 Mia 18 Min 25 NE 15 NO 21 NYG 19 NYJ 18 Oak 18 Phi 17 Pitt 16 SD 17 SF 22 Sea 22 StL 19 TB 18 Tenn 17 Wash 19

average is 17-19 years

It is 16.66 recurring.

(21 + 21 + 19 + 19)/4 = 20

1

17, 19, 21

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