Subject: Statistics and Probability
A school nurse recorded the weight of 250 students and got an average of 41.9 kg with a standard deviation of 2.5. Assuming that the weights are normally distributed.
a. What percent of the students are more than 46.9 kg?
b. How many students are between 34.4 kg and 39.4 kg?
c. Find the weight such that 34% is above it?