First we have to find the mean (average)
mean = (564 + 1000 + 848 + 1495 + 1348) / 5 = 5255 / 5 = 1051
now we subtract the mean from every data point, then square it
564 - 1051 = -487......-487^2 = 237169
1000 - 1051 = -51......-51^2 = 2601
848 - 1051 = -203......-203^2 = 41209
1495 - 1051 = 444......444^2 = 197136
1348 - 1051 = 297......297^2 = 88209
now find the mean of the results.....but know when ur dealing with a sample instead of the whole population, u divide by 1 number less...so instead of dividing by 5, u divide by 4.
(237169 + 2601 + 41209 + 197136 + 88209) / 4 = 566324 / 4 =
141581.....this is called ur variance
now take the square root of the variance and u have ur standard deviation
sqrt (141581) = 376.272 rounds to 376.27 <==
49 habitats are at the zoo because 245 divided by 5 is 49! (: (: (: hope I helped
The length of ND = 3 units
The length of N'D' = 6
6 / 3 = 2
The scale factor is 2
Answer:
18
Step-by-step explanation:
10
+8
------
18
you add the 10 to the 8
Answer:

Step-by-step explanation:
Given


Required
Determine the total size of the string
To do this, we multiply the number of pieces by the length of each piece.




Convert to mixed number
