For a probability density function (pdf), the probability of a single point is________?

The binomial distribution is positively skewed when:________?

According to the empirical rule, approximately what percent of the data should lie within μ±σ?

For distribution Function F(X),F(-∞)=0 and F(∞)=?

Discrete random variable is real valued function defined on a ________ sample space?

Non-sample errors are reduced by:________?