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UPSC Statistics PYQs 2014 | Vaidra | Vaidra
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Statistics UPSC PYQ 2014

35 questions from the UPSC 2014 examination. Showing a preview of 3 below — generate a full practice test to solve the rest.

3 questions

1Medium10 marks
What is validity of Test Scores ? How you will calculate validity ? Also make comparison with the concept of reliability.
2Medium15 marks
Discuss the inventory model with instantaneous stochastic demand with continuous replenishment unit and obtain the condition for finding the optimum inventory level.
3Medium15 marks
For an (M/M/1) : (infinity/FIFO) queueing system, derive the set of steady-state difference equations and hence find the solution of the system. In a supermarket, the average arrival rate of customers is 5 every 30 minutes. The average time it takes to list and calculate the customers purchases at the cash desk is 4.5 minutes and this time is exponentially distributed.
(i) How long will the customers expect to wait for service at the cash desk ?
(ii) What is the probability that the cashier is working ?

32 more Statistics 2014 questions await

Generate a full-length practice test on Statistics — pick the exact year, topic or chapter you want, and solve as many questions as you like with instant scoring and explanations.

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