Answer:
4.
Step-by-step explanation:
First work out the mean:
Mean = (2 + 5 + 6 + 8 + 14) / 5
= 35/5 = 7.
Now subtract the mean form each of the values:
2 - 7 = -5
5 - 7 = -2
6 - 7 = -1
8 - 7 = 1
7 - 14 = -7.
The squares of these are 25, 4, 1, 1, 49
Their sum = 25 + 4 + 1 + 1 + 49 = 80
Now divide this by 5 = 16.
Standard deviation is √16 = 4.
On Monday we have 30 tickets total.
We sell 1/3 of them on Monday.
1/5 Tuesday.
1/3 of 30 is 10. 30-10=20 We have twenty left
1/5 of 20 is 4. 20-4=16.
We have 16 left.
C. 7(8) = 56
3(8)(14) = 336
56+336= 392:)
The answer to the first question is 392 because (7*8) + (3*8*14)= 392
Answer:
1,848
Step-by-step explanation:
84
x 22
--------------
1848