5-2, 5-3, 5-4 Exam 2

The? _______ of a discrete random variable represents the mean value of the outcomes.

?If, under a given? assumption, the probability of a particular observed event is extremely? small, we conclude that the assumption is probably not correct. This represents the? _______.

A? _______ random variable has infinitely many values associated with measurements.

A? _______ random variable has either a finite or a countable number of values.

A? _______ variable is a variable that has a single numerical? value, determined by? chance, for each outcome of a procedure.

Which of the following is NOT one of the three methods for finding binomial probabilities that is found in the chapter on discrete probability? distributions?

In the binomial probability? formula, the variable x represents the? _______.

If calculations are? time-consuming and if a sample size is no more than? 5% of the size of the? population, the? _______ states to treat the selections as being independent? (even if the selections are technically? dependent).

Identify the expression for calculating the mean of a binomial distribution.

Which of the following is not a requirement of the binomial probability? distribution?

A main goal in statistics is to interpret and understand the meaning of statistical values. The? _______ can be very helpful in understanding the meaning of the mean and standard deviation.

a single numerical value of the variable is determined by chance for each outcome of the procedure.

continuous random variable

Is the number of people with blood type A in a random sample of 30 people a discrete random? variable, a continuous random? variable, or not a random? variable?

Is the gender of college students a discrete random? variable, a continuous random? variable, or not a random? variable?

Is the amount of snowfall in December in City Upper A a discrete random? variable, a continuous random? variable, or not a random? variable?

A. find the mean B. find the standard deviation c. find the standard deviation