A survey was conducted to find the average weight of students living in the dorms or a university. To help improve the accuracy of the study, an equal number of students were randomly selected from each dorm for the sample. This sample is an example of what?

Which of the following would be appropriate for a t-test?

Which of the following numbers (measures of kurtosis of a distribution) would represent a leptokurtic distribution?

What power is used in the formula for kurtosis?

P(X|Y)=.5 P(X)=.2 P(Y)=.4 What is P(X and Y),

A coin is tossed three times. What is the probability that it lands on heads exactly one time?

What is derived from the third moment of distribution?

Where would the outliers be if a distribution had a skewness of -1?

Say 2 events satisfy the following equation: P(A intersect B) = P(A) x P(B). We say that events A and B are __.

P(A)*P(B)=P(A and B) What can you conclude about A and B?

The median grade on a midterm exam in a math class of 60 students is 85. The teacher gives an additional 5 bonus points to the 3 students who scored the highest on the exam. What is the new median grade for the class?