Formula for finding mean:
Mean = (a1 + a2 + ... + an) / n
Mean is another word for average; average number of a data set.
Problems with steps:
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1) 9, 3, 6
Average = Sum/Count
Sum = 18/6
Count = 3
2) 14, 12, 17, 9
52/4
Mean = 13
3) 15,8,10,5,7
= 45/5
Mean = 9
4) 18,19,11
= 48/3
Mean = 16
5) 4,20,16,4
= 44/4
Mean = 11
6) 12,11,12,20,15
= 70/5
Mean= 14
7) 19,8,3
= 30/3
Mean = 10
8) 7,13,6,2
= 28/4
Mean = 7
9) 12,15,17,2,14
60/5
Mean = 12
10) 10,18,8
= 36/3
Mean = 12
11) 5,2 ,0,1
= 8/4
= 2
12) 3,9,5,16,7
= 40/5
Mean = 8
SOLVED !
Hope this helps!
- ROR
Answer:
f = -4
Explanation:
Subtract The Numbers: -2 - 2 = 4
f = -| -4|
Apply Absolute Rule (|-a| = a): |-4| = 4
f = -4
Answer:
After 3 seconds
Step-by-step explanation:
Given
Required
Time the drop will hit the ground
When the drop hits the ground,
So, we have:
Rewrite as:
Expand
Factorize
Factor out 5t + 1
Split
or 
Solve for t
or 
Time cannot be negative.
So:
A normal distribution with a mean of 74 and a standard deviation of 7.
Mean + 1 SD = 74 + 7 = 81
Less than 81 : 50 % + 34 % = 84 %
Answer:
A ) 84 %
Answer:
the second one :)
Step-by-step explanation:
