Blatchley Chapter 07 Quiz

. Nicky is interested in studying the infant development in premature babies. The weight of the population of premature infants can be considered the ____________ while the sample weight of premature infants in a particular hospital can be considered the _____________.

Universal set; outcome

Outcome; universal set

Universal set; subset

Outcome; subset

. Christina decides to bet a large sum of money on number 12 in roulette. Her reasoning is that the ball has not landed on 12 for the past year, thus, it is likely to land on 12 soon. If the ball still does not land on 12, then she will bet an even larger sum for it to land on 12 on the next spin of the roulette to recoup her loss. Christina is committing:

A crime

The gamble of infinite returns

The inferential fallacy

The Monte Carlo fallacy

. What is the probability that when drawing a card at random from the deck, it will be the ace of spades?

0%

0.2%

1%

2%

. Maurice has bought a large bag of candy that contains 20 fruit chews, 12 chocolate-coated cookies, 30 caramels and 15 nougat pieces. The probability that Maurice randomly draws a fruit chew after having drawn two fruit chews previously is:

An independent probability

A conditional probability

A universal probability

A normalized probability

. Which of the following reflects the concept of mutual exclusivity?

Mutual exclusivity can only be applied to a set of two events.

Two mutually exclusive events are independent from each other.

Sets that do not share any events are known as mutually exclusive.

Mutually exclusive sets are sometimes, but not always, dependent.

. In a deck of poker cards, red cards and black cards are:

Mutually exclusive sets

Non-disjointed sets

Independent sets

Fallacious sets

. What is the probability that when drawing a card at random from the deck, it will not be the ace of spades?

2%

5%

90%

98%

. What is the denominator for calculating the probability of drawing a King from a deck of cards after first having drawn a 5 with no replacement?

4

48

52

51

. The Monte Carlo fallacy is also known as the:

subset fallacy

roulette fallacy

Law of large numbers fallacy

Gambler's fallacy

. An empirical set is a set of observations based on ______________.

Mutual exclusivity

Dependence

Fallacy

Experience

. Assuming that you are tossing a fair coin, which of the following is not true?

The probability of obtaining an outcome of H H H upon three tosses is the sum of the probability of obtaining H after one toss.

The probability of obtaining an outcome of T on the second toss is independent of having obtained T previously.

The probability of obtaining T H T H T H T H is the same as the probability of obtaining T T T T H T T T.

All of the above are true.

. The law of large numbers is an example of:

Empirical probability

The gambler's fallacy

Theoretical probability

Universal set theory

. When rolling a die, what is the probability of obtaining an even number on a single throw?

1/3

1/6

1/2

1/5

. What is the probability of picking a five (any five) out of a deck of cards?

7%

8%

9%

10%

. For the empirical probability of coin toss outcomes to approach the theoretical probability, the number of trials has to be:

small

at least twenty-six

approaching infinity

at least fifty

. Which of the following is a function of descriptive statistics?

To allow for conclusions to be made about the data

To allow for hypotheses to be rejected

To allow for the expression of variability

None of the above

. Which of the following is an example of descriptive statistics?

Demographics

Z-test

Alpha level

Hypothesis testing

. What is the probability of drawing an ace on both of the first two draws from a deck of 52 poker cards?

0.25%

8%

0.5%

16%

. Jasmine tosses two dice. What is the probability that at least one of the dice lands a five?

33%

50%

83%

31%

. Jacqueline draws two cards randomly from a deck of 52 cards without replacement. What is the probability that the first card drawn is a spade but the second card drawn is not a spade?

12.5%

19%

25%

76.5%

. Consider the 12 face cards from a deck (king, queen and jack). Bernice draws a card from these face cards. What it the probability that she draws a Jack?

17%

33%

50%

66%

. Paul tosses two dice. What is the probability that both dice are a one? Express the probability in fraction.

1%

3%

17%

33%

. Which of the following options best describes parametric statistics?

It is a form of statistics but not probability.

It is a form of descriptive statistics.

It is a form of Monte Carlo statistics.

It is a form of inferential statistics.

. Which of the following pieces of information are needed for inferential statistics?

Frequency but not probability

Probability

Population variability

Demographics

. Mutually exclusive events:

Can often occur together

Can never occur together

Can be independent from each other

Can rarely occur together

Blatchley Chapter 07 Quiz

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