Answer:
Step-by-step explanation:
For items 15-20, Complete the cross number puzzle by determining the common ratio and the missing term of a geometric sequence.
Answer will be written in the puzzle for self checking 16 18 19 20 HE 15 17 1 1 Across: 1 . 15) 10'100' pony 10000 16) 10th term of the sequence -12, 24, -48,... 17) 2, 4, 8, 16, ... az 32 12 own: 18) 750, 150, 30 _ 19) 11, 44, 176, 704. 20) 4, -2, 1, -5 r = 2' 1
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
To find the population variance, we first need the mean:
so the mean is 7.2. To find the population variance (which is almost exactly the same as the sample variance except for a small difference in the denominators of the formula) we have to take each number minus the mean, and then square the difference. Add together all these squared numbers and then divide by the number of numbers. Like this:
Add together those numbers and divide them by 5: