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In: Statistics and Probability

true or fulse q1 In a regression model it is given that the estimate of intercept...

true or fulse

q1

In a regression model it is given that the estimate of intercept is 5 and the estimate of slope is 4 , then the value of dependent variable y for x = 2 is 14.

True

False

q2

When looking at the waiting line at SEU daam system, we can assume that calling population is limited. True

False

q3

A coffee machine can serve customers at the rate of 20 per hour . The customers arrive at the rate of 10 per hour. The probability of more than one customer in the system is 0.25.

True

False

q4

If the coefficient of determination for some data is 0.3, then the correlation coefficient is

True

False

q5

If we make changes in the technological coefficient from 3x +2y ≤ 50 to 6x + 2y ≤ 50, it may cause a change in the optimal solution.

True

False

q6

The customer who arrives at a bank , sees a long line , and leaves to return another time is called balking.

True

False

q7

A vendor selling vegetables on a street corner is an example of a multi-channel, single-phase system.

True

False

q8

  The Graphical Method in Linear programming Problem can also work when there are more than two decision variables.

True

False

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