a committee of 3 is being formed randomly from the employees at a school: 5 administrators, 34 teachers, and 4 staff. what is the probability that all 3 members are administrators? express your answer as a fraction in lowest terms or a decimal to the nearest millionth.​

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.