6. There is a class of 40 girls. There are 18 girls who like to play chess, and 23 who like to play soccer. Several of them like biking. The number of those who like to play both chess and soccer is 9. There are 7 girls who like chess and biking, and 12 who like soccer and biking. There are 4 girls who like all three activities. In addition we know that everybody likes at least one of these activities. How many girls like biking?

Q: Choose the letter of the correct answer. A certain elementary school club has 50 members, 20 of…

A:

Q: Imagine a game show on television where one lucky contestant is presented with three upside-down…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The math club has seven members and will choose a team of three to send to a competition. The…

A: Given that the math club has 7 members and will choose a team of 3 to send to a competition.  The…

Q: Pizza is available with three kinds of cheese and four toppings. How many different ways can you…

A:

Q: Joel and Learsi own goats and ducks. Counting heads there are 39. Counting legs, there are 110. How…

A: Given that  Joel and Learsi own goats and ducks. Counting heads there are 39. Counting legs, there…

Q: A donut store has 10 different types of donuts. You can only buy a bag of 3 of them, where each…

A: A donut store has 10 different types of donuts. You can only buy a bag of 3 of them, where each…

Q: How many students are taking at least one of the three classes?

A: Concept:   The number of ways of achieving success that is the total number of possible outcomes is…

Q: You need to put your reindeer, Balthazar, Rudy, Jebediah, and Ezekiel, in a single-file line to pull…

A: There are totally 4 people that are Balthazar, Rudy, Jebediah, and Ezekiel. It is also given that…

Q: In a popular online role playing game, players can create detailed designs for their character's…

A: <p>First, we need to calculate the total number of visitors who visited the website. This is…

Q: Of the 30 students in my class, 11 practice taekwondo, 11 play piano, and 20 take lessons in math. 4…

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Q: AT LEAST one of each kind?

A:

Q: Most courses offered at a local university worth either 4 or 5 credit hours. The members of the…

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Q: You have 5 adult emus and 6 juvenile emus. How many ways are there to choose a group of emus so…

A:

Q: Example 6. In a survey of 500 students in a college 180 were listed as drinking Tea, 275 as drinking…

A: Let T=students in a college were drinking TeaC=students in a college were drinking…

Q: A pizza restaurant is offering a promotion in which you can order a large pizza and your choice of a…

A: Let m choices to be made with n1 options for the 1st choice, n2 options for the 2nd choice, … , nm…

Q: 2.) The BOS-14 is the new model of cars manufactured by NUC Motors. This model can be achieved in 2…

A: Given that the BOS-14 model of cars can be achieved in 2 body styles, 4 interior options and 7…

Q: A bagel shop has a selection of 8 different kinds of bagels (at least 10 of cach). ( .1) How many…

A: Given, A bagel shop has a selection of 8 different kinds of bagels. At least 10 of each.

Q: 7. At a tuition centre, some teachers teach English while others teach mathematics or both subjects.…

A:

Q: Dr. Stewart is a veterinarian who sees only dogs and cats. In each appointment, she may or may not…

A: Probability of an event is computed by taking the ratio of number of favourable outcomes of the…

Q: A married couple decides to have a party. The husband has 8 friends and the wife has 9 friends.…

A: Solution: Given information: Husband has 8 friends  Wife has 9 friends  Total friends = 8+9= 17

Q: There are two roads between town A and B.There are three roads between town B and C. How many…

A: Number of ways we can travel from A to B is n1 = 2 ways     Number of ways we can travel from B to C…

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.