Subjective Probability

Classify the following statement as an example of classical, empirical, or subjective probability. After grading the first chapter test the teacher stated that if grades did not get better about 1 out of every 4 students would not pass the class.

• Classical

• Empirical

• Subjective

Classify the following statement as an example of classical, empirical, or subjective probability. After watching the students in the hallway between classes your Math teacher states that about 15% of the students are in violation of the dress code.

• Classical

• Empirical

• Subjective

What describes subjective probability?

• Probability that can be calculated using theory, like flipping a coin, drawing a card, or rolling a die.

• Probability that can be calculated once an experiment has been done that has provided resulting data.

• Probability that can be calculated using someone's educated guess based on previous observations or future estimations.

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

• Classical

• Relative

• Empirical

• Subjective

Subjective probability has little use in the real world.

• True

• False

The probability that Mr. Walhaut will be a great principal this year is 98%. This is an example of which type of probability?

• Classical Probability.

• Empirical Probability.

• Subjective Probability.

When throwing a die two times in a row, choose all of the events that have a probability of 1/6. (or 6/36)

• rolling doubles

• rolling 1 on either die

• rolling a sum of 7

• rolling an even sum

What is the probability of brown eyes given that the person is a female?

• ³⁰/₈₅

• ⁴⁵/₁₆₇

• ³⁰/₁₆₇

• ⁴⁵/₈₅

A bowl of jelly bellies is on the table. 6 black licorice and 14 pear flavors. Mrs. Hettinger grabs one, smells that it is black licorice and pops the delicious bean into her mouth! What is the probability that three in a row will be black licorice flavored?

• (⁶/₁₄)(⁵/₁₃)(⁴/₁₂)

• (⁶/₂₀)

• (⁶/₂₀)³

• (⁶/₂₀)(⁵/₁₉)(⁴/₁₈)

A spinner has 8 equal sections numbered 1 to 8. What is the probability of the spinner stopping on a number that is a multiple of 3 or is greater than 5?

• 1/7

• 1/12

• 5/8

• 1/2