First 15 days: F1, x= 1 to 15 and f(x)= 2.4 to 8

Last 15 days: F2, x= 16 to 30 and f(x) = ~4.7 to ~6.7 (30th to 16th)

Median is average of 15th and 16th value when all of the above values are arranged in order

Do not try to calculate all the values. Go for the choices.

11.1 - outside the range of values

8- last value

6.71 - last value for the F2, so already we have 15 values less than 6.71. Additionally F1 has some values less.

4.7 - First value for the F2, so already we have 15 values greater than 4.7. Additionally F1 has some values greater.

Hence 5.55 must be the answer.

If we had very close answer choices, it would have been very calculation- intensive problem.

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