80% of a class of 40 children passed a math test. A. How many children passed in maths? B. What fraction failed in maths

Q: 3. 12 people got an A, 11 people got a B, 31 people got a C, 9 people got a D, and 5 people got an…

A: Percentage can be calculated, suppose for the people who got C as  (No. Of people who obtained C ÷…

Q: Use the fundamental counting principle to dins the total number of possible outcomes A)12 B)59…

A: If we can perform a task A in m different ways and a task B in n different ways, then we can…

Q: 1. How many people carried a cell phone or a tablet? 2. How many people carried neither a cell phone…

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Q: How many males like football? Baseball Basketball Football Total 13 15 48 Male 23 16 13 52 Female 36…

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Q: Question How many ways can a committee of 3 people be selected from a group of 12 people? O A. 220 O…

A: The combination formula is given by

Q: 16. How many more girls selected chocolate than boys? Favorite Flavor

A: Given that  Histogram of data showing number of girls and boys selecting chocolate and vanilla. From…

Q: A survey asked 750 people whether they like chocolate (C), butterscotch (B), or strawberry on…

A: Idea: from the diagram we can see how many people liking one flavour,two flavours and three…

Q: In a survey of 142 pet owners, 77 said they own a dog, and 72 said they own a cat. 38 said they own…

A: If A and B be two subset of a universal set U . Then if n(A) denote number of element in A then we…

Q: Use the fundamental counting principle to solve the problem. How many license plates can be made…

A:

Q: 3. There are 64 children in year 4. a) 8 are off sick. What fraction of children is left? b) 48 stay…

A: Two basic math word problems are given. Both are part of fractions. We have to solve these by using…

Q: How many values are in the range 35 to 95?

A: Given  Lower value = 35 Upper value = 95

Q: In how many ways can 8 campers sit around a campfire? 5,040 5,760 40,320

A: No of ways n people can sit around a circle = (n-1) !

Q: In a survey of 150 pet owners, 91 said they own a dog, and 30 said they own a cat. 6 said they own…

A: It is given that,  91 owners said they owned a dog, n(dog) =91 30 owners said they owned a cat,…

Q: A trader buy's 80 mangoes. she finds that 8 are bad and a further 22 are unripe ,show on a pie chart…

A: Given data:- Total number of mangoes = 80 Bad mangoes = 8 Unripe mangoes = 22

Q: 5. If $782 is divided among three persons A, B and C in the ratio 1/2: 2/3: 3/4, then find the share…

A: according to our guidelines we can answer only three subparts, or first question and rest can be…

Q: What is the average of 47, 38, 56, and 43? O 47 O 184 O 46 O 44

A: Given Data: Given Numbers: 47, 38, 56, 43 There are four numbers given. So, n=4 The average of the…

Q: In how many ways can you arrange 10 people to be seated in a round table? Your answer

A: GivenArrange 10 people to be seated in a round table Total no. of persons = 10

Q: In a survey of 114 pet owners, 70 said they own a dog, and 15 said they own a cat. 11 said they own…

A: Given Information: In a survey of 114 pet owners. 70 said they own a dog 15 said they own a cat 11…

Q: a) How many students are taking English, History, or Science? b) How many students are taking…

A: The above question is of Venn diagram and the data given is as follows -  1177 Total students. 646…

Q: How many ways can a c

A: Given, a committee of 6 members be selected from an organization with 20 members

Q: In a party, ten chairs are positioned around a circular table. In how many ways can ten people be…

A:

Q: a. How many vehicles are in Canada? b. How many vehicles are motorcycles? c. How many vehicles are…

A: Since the question has multiple subparts,  we have solved the first three subparts . Please resend…

Q: In a shipment of 25 parts, 8 of the 25 parts are defective! In how many ways can the technician…

A: Introduction: It is required to calculate the number of ways of selecting 2 defective parts.

Q: In how many ways can you make a team of 11 players out of 20 players? Round the answer to the…

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Q: To gather information about the elk population, scientists marked 30 elk. Later, they flew over the…

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Q: (5) A survey was done on a college campus to determine how many students owned a cell phone. Of the…

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Q: There are 5 new books and 9 used books on a shelf. (a) What is the ratio of all books on the shelf…

A: Number of New Books on a shelf = 5 Number of Used Books on a shelf = 9 Total Number of Books on a…

Q: In a race between 18 people, how many ways can the top 5 finishers be arranged? O 1,028,160 8,568 O…

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Q: 1 In the last municipal election, 62-% of the population of 94,800 was eligible to vote. Of those…

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Q: How many anagrams of FROSTYROADS are there? Give the answer as a p

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Q: In a survey of 96 pet owners, 68 said they own a dog, and 11 said they own a cat. 6 said they own…

A:

Q: 19. Find the measure of LAOC. MLAOC =

A: Consider the following diagram: Consider the following angles: ∠AOC=x+6°∠BOC=3x-30°

Q: How many cups are in 5 quarts? ___ cups

A: Quarts is a unit for the measurement of liquid. If is equal to quarter of a gallon. This unit of…

Q: In a survey of 1110 investors, it was determined that 670 invested in stocks, 625 in bonds and 320…

A: Given: In a survey of 1110 investors, it was determined that 670 invested in stocks 625 in bonds and…

Q: In a survey of 57 pet owners, 17 said they own a dog, and 16 said they own a cat. 7 said they own…

A: In the Given data, Survey Done for Pets, total Pet owners = 57.

Q: There are 50 persons. find the number of hand shakings that occur is ... 1. O 1225 2. O 2450 3. O…

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Q: 4) How many Coffee Drinkers are there? 62 Total People 29 Tea Drinkers 35 Beer Drinkers 14 10 Coffee…

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Q: . A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He…

A: Provided information is, Dr. A. Ventura is interested in determining what kinds and how many pets…

Q: 15. 384 V3 in.? 8V3 in. 17. 18.

A: Given the query is to find the area of hexagon.

Q: D. How many are enlisted or have a civilian marriage? E. How many are neither enlisted nor have a…

A: AS per our guidelines we are suppose to answer three sub parts.

Q: 120 coffee drinkers were asked whether they used cream or sugar in their coffee. The summary of the…

A: Given info: 120 coffee drinkers were asked whether they used cream or sugar in their coffee.…

Q: In a survey of 106 pet owners, 52 said they own a dog, and 17 said they own a cat. 5 said they own…

A: Given information: Total number of pet owners included in the survey, N = 106 Number of pet owners…

Q: 8) What is the measure of 48 72 C B 60 O 120 65 270

A: To find the measure of the arcAC, we must first find the measure of the angle A.

Q: i. How many ways to select consonant letters or country names? ii. How many ways to select even…

A: HERE GIVEN, a Preliminary teacher has prepared 116 educational placards which consists of 30 animals…

Q: Ontario 7,320 Michigan 22,316 Erie 9,922 Superior 31,698 To the nearest thousand, which is the best…

A: The Great Lakes beginning with a consonant are Michigan and Superior; the Great Lakes beginning with…

Q: 10) Out of the 7 finalists, how many ways can we give awards for First, Second, and Third? O 210 105…

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Q: what is 6,562,893 ÷ 11

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Q: What is the average of 12.5, 19.5, 22.5, and 33.5?

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Q: 42 If a hockey team's win: loss: tie ratio is 5: 2: 3 after their last 30 games, how many games have…

A: If a hockey team's win:loss:tie ratio is 5:2:3 after their last 30 games, how many games have they…

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.