Outside temperature over a day can be modeled as a sinusoidal function. suppose you know the temperature varies between 40 and 70 degrees during the day and the average daily temperature first occurs at 10 am. how many hours after midnight, to two decimal places, does the temperature first reach 51 degrees?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample