Answer with explanation:
Mean of the data set
= 112
Standard Deviation of the data set
=2.5
Since , 50% of data lies on both side of the mean.
Z at 50% = 0.1915
Margin of error for this data set
Margin of error=0.045(approx)
Answer:
-4,-3
Step-by-step explanation:
I think thats right! If not, let me know.
B) 19/8 + 28/8
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Factor out 0.1t (t + 16)
t + 16 = 0
Subtract 16 from both sides
t = -16
After 16 years the income begins to decline
R - it is rain (probablity: 0.86)
N - it is not rain (probablity: 1-0.86 = 0.14)
You've got these cases:
R R R R R R R R R N
R R R R R R R R N R
R R R R R R R N R R
. . .
N R R R R R R R R R - it is 10 cases. Probablity each case is
(0.86)^9 * 0.14 - it is approximately 0.036 (9R and 1N - you multiply everything)
It is 10 cases so you have to multiply by 10 and you get 0.36
There is also eleventh case:
R R R R R R R R R R
Probablity is (0.86)^10 approximately 0.22
Add these cases and you'll get your probablity: 0.36 + 0.22 = 0.58
