From a sample n=36, the mean duration of a geysers eruption is 3.76 minutes and the standard deviation is 1.21 minutes using chebychevs theorem. determine at least how many of the eruptions lasted between 0.13 and 7.39 minutes

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .