Statistics MidTerm Exam

Front

If you are recording a person's age as '25.6 years,' the variable would likely be classified as:

Back

Quantitative, continuous

Front

A bag contains 10 lottery balls, numbered 1-10. A ball is drawn, not replaced, then another is drawn. Find P(10, then even).

Back

2/45

Front

Which type of variable involves counting and does not make sense with decimals?

Back

Discrete

Front

Two dices are rolled. What is the probability of getting 5 and even number?

Back

1/12

Front

A box has 6 red pens, 8 black pens, 2 blue pens, and 4 purple pens. P(NOT red or blue)?

Back

3/5

Front

Define a categorical variable.

Back

A variable that represents categories or groups without a numerical value.

Front

What is a quantitative variable?

Back

A variable that can be measured and expressed numerically.

Front

Explain the difference between discrete and continuous variables.

Back

Discrete variables can take on a countable number of values, while continuous variables can take on an infinite number of values within a range.

Front

What is the formula for calculating probability?

Back

P(Event) = Number of favorable outcomes / Total number of outcomes.

Front

What is the probability of rolling a sum of 7 with two dice?

Back

6/36 or 1/6.