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The lifetime T (in days) of an electrical component has reliability function given by: R(t) = e - 0 : 01 t for time t > 0. An electrical system consists of four such component
X 420 610 625 500 400 550 650 480 565 Y 2.80 3.60 3.75 3.00 2.50 2.70 3.50 3.90 2.0 2.95 3.30 Calculate te covarience anf the correlatio coeficient. Comment on the relationship be
List all possible simple random samples of size n = 2 that can be selected from the population {0, 1, 2, 3, 4}. Calculate 2 s for the population and Var y( ) for the sample.
Consider the two events A and B with P(A) = 0.4 and P(B) = 0.3. (a) If A and B are independent then compute the probability that Both A and B happen
a) The US Food and Drug Administration has veto power over the choice of drug names. In 2004, it used this power regularly, rejecting 36% of the names proposed by companies for re
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
wat is cost accounting and wats its scope ?
1. Calculate Karl Pearson’s coefficient of correlation between expenditure on advertising (X) and sales (Y) from the data given below: The management decided to stop further expens
Why index numbers serve as economic barometers?
what is environmental apprasial
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