103 chapter 4

An event that will never happen has a probability of what?

0

Jake has been flipping a coin for 3 hours straight and he is about to flip it for the 500th time. What is the theoretical probability that Jake gets heads on this last flip?

1 out of 2 (50%) because no matter how many times a coin is flipped, each flip has just two possible outcomes, heads or tails.

Using a standard deck of 52 cards, what is the probability of selecting a 4 and then after not replacing the card, selecting another 4?

1/221

Kyle works at a local music store. The store receives a shipment of new CDs in a box. In the shipment, there are 10 country CDs, 5 rock CDs, 12 hip hop CDs, and 3 jazz CDs. What is the probability that Kyle will select a jazz CD from the box, and then, without replacing the CD, select a country CD?

1/29

Kyle works at a local music store. The store receives a shipment of new CDs in a box. In the shipment, there are 10 country CDs, 5 rock CDs, 12 hip hop CDs, and 3 jazz CDs. What is the probability that the first CD Kyle chooses from the box will be country?

1/3

What is the probability of rolling either a 3 or a 6 when rolling a die?

1/3

Kate and Kyle are playing a game. They must flip a coin and spin a spinner that has 12 equal sections numbered 1 through 12. What is the probability that Kyle will flip a heads and spin the spinner and get an ever number?

1/4

All of the letters of MISSISSIPPI are put in a bag. What is the probability of selecting both an M and then after not replacing the letter, selecting a P?

1/55

If you roll a die three times, what is the probability of rolling only even numbers?

1/8

Using a standard deck of cards (which has 26 red cards and 26 black cards, with 13 cards of every suit), what is the probability of selecting a red card, and then after replacing the card, selecting a heart card?

1/8

The numbers 1 through 20 are written on separate slips of paper and placed in a hat. One of the slips is randomly drawn. What is the probability that either a prime number or a number less than 10 is drawn?

13/20

A bag has been filled with 35 red marbles, 25 green marbles, 25 blue marbles and 15 orange marbles. What is the theoretical probability that someone can reach in and randomly pick an orange marble?

15 out of 100, which is 15/100 (15%)

All of the letters that spell MISSISSIPPI are put into a bag. What is the probability of selecting a vowel, and then after replacing the letter, also drawing an S?

16/121

You and your friend are among 15 students who will give speeches in front of the class. The teacher will randomly choose one of the 15 students to give the first speech. Each student has an equal probability of being chosen. Find the probability that either you or your friend will be chosen to give the first speech.

2/15

You roll a 6-sided die. What is the probability that the number rolled will be odd or prime? (1 is not a prime number)

2/3

What is the range of the data set below? 3, 7, 9, 11, 11, 11, 15, 17, 18, 24

21

During the first four Summer Olympic games attended by the United States, these medal counts were awarded. Calculate the range number of medals won during these Olympic Games.

219

During the first four Summer Olympic games attended by the United States, these medal counts were awarded. If there is an outlier, identify it from the number of medals won during these Olympic Games.

239

Fifty tickets are sold for a raffle. You buy 2 tickets and your sister buys 4 tickets. One ticket is randomly chosen as the winning ticket. What is the probability that you or your sister wins the raffle?

3/25

Kyle works at a local music store. The store receives a shipment of new CDs in a box. In the shipment, there are 10 country CDs, 5 rock CDs, 12 hip hop CDs, and 3 jazz CDs. What is the probability that the first CD that Kyle pulls from the box will NOT be hip hop?

3/5

What is the probability of picking a blue balloon if there are 3 blue balloons, 1 red balloon, and 1 yellow balloon?

3/5

What is the variance of the data set below? 3, 7, 9, 11, 11, 11, 15, 17, 18, 24

32.84

During the first four Summer Olympic games attended by the United States, these medal counts were awarded. Calculate the median number of medals won during these Olympic Games.

47

During the first four Summer Olympic games attended by the United States, these medal counts were awarded. Calculate the mode number of medals won during these Olympic Games.

47

There are 95 white pieces of paper in a hat along with 5 blue pieces of paper. What is the theoretical probability that a blind-folded person draws a blue piece of paper on the first attempt?

5 out of 100, which is 5/100 or 1/20 (5%).

A normal deck of cards has 52 cards in it with four different suits (hearts, spades, clubs, diamonds). What is the probability of drawing an ace of spades or a 3 (from any suit) from a normal deck of cards?

5/52

The probability of winning a prize at a ball toss at a carnival is 2/7. What is the probability of not winning a prize?

5/7

Find the maximum in the data set: 27, 26, 33, 45, 38, 38, 58, 54, 19, 22, 31

58

Using a spinner with 12 equal sections numbered 1 through 12, what is the probability that jim will spin a number less than 8?

7/12

What is the minimum in the data set? 105, 88, 93, 102, 97, 93, 96, 86, 88, 82, 79, 85, 77, 94, 91,87

77

During the first four Summer Olympic games attended by the United Report an Error question 4 of 5 States, these medal counts were awarded. Calculate the mean number of medals won during these Olympic Games. (Round it to the nearest whole number.)

88

There are two ways to play a game and win. Each comes with its own probability of winning. Game option A has a probability of 1/4 and game option B has a probability of 1/8. Which option has the higher probability of winning?

A

A statistical question is what kind of question?

A question that has more than one answer that changes depending on the situation.

A non-statistical question is what kind of question?

A question with just one answer that doesn't change

Which of the following statements is true?

All of the statements are true

Which of the following is a statistical question?

Harry spends on average how many minutes on homework each night?

Which of the following is a statistical question?

How many rabbits are born each year

A probability of 1 means what?

It means something will always happen

Which of these is a non-statistical question?

Sally charges how much for a slice of pumpkin pie?

What are three methods you can use to find the spread in data?

Variance, range, and interquartile range

What is the difference between the upper quartile value and the lower quartile value?

interquartile range

What is the largest mathematical value in a data set?

maximum

What is the sum of the numbers in a data set divided by the total number of values in the data set?

mean

For the following data set, select the best method for summarizing the data. 3, 3, 4, 5, 2, 9, 5, 2, 3, 4

median

What is the midpoint value of a data set, where the values are arranged in ascending or descending order?

median

What is the smallest mathematical value in a data set?

minimum

Theoretical probability is equal to:

number of favorable outcomes divided by total number of possible outcomes

What do we call a value that is much smaller or larger than the other values in a data set?

outlier

What is a value that is much larger or smaller than the other values in a data set, or a value that lies outside the given data set?

outlier

What is the measure of how far the numbers in a data set are away from the mean or the median?

spread in data

What is a single number that summarizes an entire data set?

the center of the data