Marcus has 10 gumballs in a bowl. There are 7 yellow, 1 red gumballs, and the rest are blue.without looking, he grabs one gumballs, puts it back , and then grabs another gumballs. What is the probability that both gumballs he grabs are yellow? 7/50, 13/90, 7/15, 49/100?

Q: A restaurant accepts cash or credit cards. The store manager knows the probability of a customer…

A: The random variable  is the number of customers using cash.Number of customers: Probability of a…

Q: A high school baseball player has a 0.302 batting average. In one game, he gets 8 at bats. What is…

A: Solution: Let X represent the number of hits made by player in the game.  The baseball player has a…

Q: A high school baseball player has a 0.245 batting average. In one game, he gets 5 at-bats. What is…

A: The probability mass function of Binomial distribution is,  P(X= x) = nCx (p)x (1-p) n-x ; x=…

Q: Maya bought 8 seeds in order to plant a herb garden for her grandma. Of the seeds she bought, 6 were…

A:

Q: You have four toonies and three loonies in your pocket. You pull one coin out and then pull out…

A: We have 4 toonies and 3 loonies  Total coins = 7

Q: A game show contestant must randomly select a door.One door doubles her money while the other three…

A: The number of doors doubles her money is 1.

Q: There are 20 sides to the messages.  What is the probability of getting the same message 2 times in…

A: The probability of getting a specific message on the first try is 1/20,since there are 20 total…

Q: Steve has 12 biscuits in a tin. There are 5 digestive and 7 chocolate biscuits. Steve takes two…

A: Given that, Total number of biscuits = 12 5 digestive biscuits and 7 chocolate biscuits We to find…

Q: Three balls are selected randomly from a bag containing 4 red balls and 7 blue ones. Find the…

A: From the provided information, Red balls = 4 Blue balls = 7 Total balls = 11

Q: A high school baseball player has a 0.161 batting average. In one game, he gets 7 at bats. What is…

A:

Q: Billy selects some cards from a standard 52 card deck.  What is the probability that he selects 1…

A: Given data: The total numbers of cards in the playing deck are n=52. The numbers of hearts are h=13.…

Q: You have a 30-sided dice. Your friend Hugo has three favorite numbers: 5, 3, and 10. What is the…

A: Given You have a 30-sided dice. Your friend Hugo has three favorite numbers: 5, 3, and 10.

Q: You carry seven keys in your pocket, two of which are for the two locks on your front door. You lose…

A: When we are working on probability, we are talking about uncertainty. When a coin is tossed, we do…

Q: If two players play this game

A: Fair means The coin has to get a chance heads or tails is 50-50%. unfair coins having more chances…

Q: A high school baseball player has a 0.181 batting average. In one game, he gets 5 at bats. What is…

A:

Q: A bag contains 2 gold marbles, 10 silver marbles, and 26 black marbles. You randomly select one…

A: Given data, No of gold marbles=2 No of silver marbles=10 No of black marbles=26 Total no of…

Q: There is a jar of coins sitting on the table in the center of the room. The jar contains 9 pennies,…

A: given data   jar contains : 9 - pennies    1 cent 12 - nickles  - 5 cent 10 - dimes  - 10 cent 5 -…

Q: What is the probability that all 3 cards are Queens?

A: Number of Queen cards = 4 Total number of cards = 52 Define some events A: first card is Queen B:…

Q: in a break room there are 3 bags of pretzels 2 bags of doritos and 4 bags of popcorn .find the…

A: Total number of bags = 9 (i.e. 3+2+4) Number of pretzels bags = 3 Number of Doritos  bags= 2 Number…

Q: Eric teaches ceramics in his studio. He estimates that one 20% people who call for information about…

A: Here we need to find the required probability using the binomial distribution.

Q: What's the probability that his 10th roll will not be a six?

A: Tom is playing a board game.  He has rolled a six nine times in a row Here probability of getting…

Q: You pick 4 cards from a deck replacing the card each time before picking the next card. What is the…

A: Solution: From the given information, 4 cards are to be picked from a deck.

Q: There are 100 balls in a container. 30 of them are red, 50 blue, and 20 green.  We randomly select a…

A:

Q: A high school baseball player has a 0.181 batting average. In one game, he gets 7 at bats. What is…

A:

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.