Answer:
The standard deviation (σ) = 0.05
Step-by-step explanation:
The question is to find the standard deviation.
STEEP 1: FIND THE MEAN
(10+9.9) ÷ 2 = 9.95
STEP 2: SQUARE THE DIFFERENCE BETWEEN SPRINT TIME AND MEAN
10-9.95= 0.05
0.05^2 = 0.0025
9.9 - 9.95= -0.0025
-0.0025^2 = 0.0025
STEP 3: FIND THE VARIANCE
0.0025+0.0025= 0.005
0.005/2= 0.0025
STEP 4: FIND THE STANDARD DEVIATION (σ )
√variance
√0.0025 = 0.05
Therefore
σ = 0.05.
From the standard deviation, the percentage probability of the higher value to occurs is
0.05×100= 5%
That means Doug has 95%
And Bob has 5%
2x-2yd=y+xd
2x-y=xd+2yd
2x-y=d(x+2y)
(2x-y)/(x+2y)=d
So the answer is <span><span>d=<span><span>2x−y</span><span>x+2y</span></span></span></span>
Step-by-step explanation:
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Answer:
3 million barrels
Step-by-step explanation:
Total crude oil=60 million barrels
gasoline 34% diesel 29% total crude oil -60 million barrel · =0.34 times 60
Diesel=20,400,000 and gasoline=17,400,000
Quantity of gasoline = 34% of total crude oil
=0.34 times 60 =20.4
Quantity of diesel = 29% of total crude oil
=0.29 times 60 { million barrels}
Clearly, Quantity of gasoline is more than Quantity of diesel
difference = Quantity of gasoline-Quantity of diesel
20.4 -17.4 milion barrels
Therefore,
The production of gasoline is 3 million barrels more than diesel last year.
