The average number of mosquitoes in a stagnant pond is 60 pe

The average number of mosquitoes in a stagnant pond is 60 per square meter with a standard deviation of 16. If 25 square meters are chosen at random for a mosquito count, find the probability that the average of those counts is more than 62.9 mosquitos per square meter. Assume that the variable is normally distributed.

Select one:

a. 0.3%

b. 18%

c. 31%

d. 81%

e. Cannot be determined.

Solution

It cannot be determined as for square meter the average and the standard deviation is given but the same data cannot be multiplied by 25 to get the vakues for 25 square meters.

Also the final answer required is in per square meter.