The cost of fuel in running of an engine is proportional to the square of the speed and is Rs 48 per hour for speed of 16 kilometers per hour


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Quantitative Methods

CASE STUDY (20 Marks)

The cost of fuel in running of an engine is proportional to the square of the speed and is Rs 48 per hour for speed of 16 kilometers per hour. Other expenses amount to Rs 300 per hour. What is the most economical speed?

Answer the following question.

Q1. What is most economical speed?

Q2. What is a chi-square test?

Q3. What is sampling and what are its uses.

Q4. Is there any alternative formula to find the value of Chi-square?

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