Three groups of three people are to be selected from time people, of whom three are man teachers, two lady teachers and parents. Find the probability that i) the two lady teachers being in the same group.
ii) one group consists of at least two of the man teachers.​

This assignment is past the original due date o this data is from a sample. calculate the mean, standard deviation, and variance 16.7 11.1 46.7 14.8 13.3 16.6 18.5 47.3 42,8 show the following answers to 2 decimal places. sample mean- sample standard deviation ( use the standard deviation above for your calculation.) sample variance ooops- now you discover that the data was actually from a population! so now you must give the population standard deviation.