Answer:
Step-by-step explanation:
The concept of variance in random variable is applied in solving for the value of c for the estimator cW1 + (1 − c)W2 to be most efficient. Appropriate differentiation of the estimator with respect to c will give the value of c when the result is at minimum.
The detailed analysis and step by step approach is as shown in the attachment.
9514 1404 393
Answer:
77.6
Step-by-step explanation:
The ratio of light times will be the ratio of distances:
(light time to Neptune) / (light time to Mercury)
= (Neptune distance)/(Mercury distance)
= (27.93×10^8 mi)/(0.3598×10^8 mi) = 27.93/0.3598
≈ 77.6
It takes about 77.6 times as long for light to reach Neptune as it does to reach Mercury.
Let x = 0.71428571428...
1000000x = 714285.714285...
x(1000000 - 1) = 714285
999999x = 714285
x = 714285/999999
38.5
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I’m pretty sure it’s the last one it would make the most sense because if someone doesn’t get their flight even though they pay for it they should get their refund and then they should get on the second flight they go to the same place they’re going so they would get their money and then pay for the second flight that would make the most sense.
