9
=12*(9+5)/7 = 12*14/7 = 12*2 = 24
Average = (12 + 8 + 7)/3 = 27/3 = 9
The ratio of 5 and 7 8 and 9 12 and 18 85 and 170 is 5:7/8:9/12:18/85:170.
Sample size: 12 Sorted sample: 3, 5, 6, 6, 7, 7, 8, 9, 9, 9, 10, 10 Middle numbers: 7, 8 Average of middle numbers, known as median: 7.5
the average of 7,9,11,12,16 is = (7+9+11+12+16)/5 =11
9
The average is 10... 11+11+9+7+12=50... 50/5=10
The mean of those data points is 9.
A Possible Answer could be: 70 9 12 12 10 5 1
=12*(9+5)/7 = 12*14/7 = 12*2 = 24
Average = (12 + 8 + 7)/3 = 27/3 = 9
Well, darling, if you add 5, 7, and 9 together, you get 21. And since there are three numbers, you divide 21 by 3 to get an average of 7. So, the average of 5, 7, and 9 is 7. Hope that clears things up for you, sweetie!
The ratio of 5 and 7 8 and 9 12 and 18 85 and 170 is 5:7/8:9/12:18/85:170.
7
The "N"th term is -7. You can deduce this from: 19 - 7 = 12 - 7 = 5 - 7 = -2 - 7 = -9
it is 7 because 9+3=12-5=7