Stats- Chapter 4 Review

Subjective probability has little use in the real world.

• True
• False

Empirical probability uses results from an experiment to calculate probability.

• True

• False

What type of probability uses sample spaces rather than experiment data to calculate probability?

• Classical

• Empirical

• Subjective

• Conditional

When two events are mutually exclusive, P(A or B) = P(A) + P(B)

• True
• False

If two events are dependent, then the first event does NOT affect the second event.

• True
• False

An event and its complement can occur at the same time.

• True
• False

A combination is an arrangement in which order does NOT matter.

• True
• False

When objects are arranged in a specific order, the arrangement is called a combination.

• True
• False

The probability that an event happens is 0.42.  What is the probability that the event won't happen?

• -0.42
• 0
• 0.58
• 1

When a meteorologist says that there is a 30% chance of showers, what type of probability is the person using?

• Classical
• Relative
• Empirical
• Subjective