# The airlines

The airline's company is interested in decreasing the waiting time spent by customers while buying air tickets. So, the relationship between waiting time "y" in minutes and the number of counters "x" operating to sell tickets has been studied (Marks 6)

Therefore, customers were randomly selected, and data was collected as below –

x 2 3 5 4 2 6 1 3 4 3 3 2 4

y 12.8 11.3 3.2 6.4 11.6 3.2 8.7 10.5 8.2 11.3 9.4 12.8 8.2

a) Calculate the regression equation that best fits the data

b) Calculate the coefficient of correlation

c) What should you do if you want to reduce the time to 5 minutes?

Therefore, customers were randomly selected, and data was collected as below –

x 2 3 5 4 2 6 1 3 4 3 3 2 4

y 12.8 11.3 3.2 6.4 11.6 3.2 8.7 10.5 8.2 11.3 9.4 12.8 8.2

a) Calculate the regression equation that best fits the data

b) Calculate the coefficient of correlation

c) What should you do if you want to reduce the time to 5 minutes?

## Correct answer:

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