A member of the Student Council decided to conduct a room visit and asked the students for their club involvement. Out of 150 who were surveyed, 85 mentioned that they joined the Debate Club; 70 said that they signed up for the Cooking Club; and 50 joined both the Debate and Cooking Clubs. How many students joined the Debate or Cooking Club?

Q: he production manager of MPS Audio Systems Inc. is concerned about the idle time of workers. In…

A: a) H0: Idle minutes are same. H1: idle minutes are not same. This is two tailed test. Critical…

Q: A survey was given to a group of 10,000 students to determine whether they wanted an outdoor…

A: The union of events A and B is defined as n(A ∪ B) = n(A)  + n(B) – n(A ∩ B).

Q: Ms. Teller surveyed the 38 students in her class about their families. 28 students have a brother or…

A: solution of the given problem is below...

Q: A recent study of 230 people in a small downtown neighborhood found that 66 had medical insurance…

A:

Q: Among the eight cars that a dealer has in his show-room, Car 1 is new and has air-conditioning,…

A: Introduction: The given information on the 8 cars in the showroom can be expressed in the following…

Q: At an assembly, 8 out of the first 20 students who entered the gym were wearing grey shoes. Based on…

A:

Q: A group of students were asked whether they like Mathematics, Physics, or both. If 456 like…

A: We want to find total number of students.

Q: A survey was done on a college campus to determine how many students owned a cell phone. Of the 140…

A: Given information: It is given that the total number of students surveyed is 140. Calculation: The…

Q: In a school with 92 students, 47 live with their biological father and 68 like with their biological…

A: Let S= total students  F= who lives with biological father M=who lives with biological mother Given…

Q: In a survey of 426 people, a pet food manufacturer found that 92 owned a dog but not a cat, 103…

A: Determine how many owned both a cat and dog. From the information, given that   Number of people…

Q: 10. Of the 200 candidates who were interviewed for a position at a call center, 100 had a…

A: See the attachment

Q: In a recent survey of 100 students, 38 said that they took a Math class as a freshman, 49 said that…

A: Follow 2nd step.

Q: Out of the 12 people applying for a scholarship, a) how many ways can we select a group of five to…

A: N : number of students = 12 a) To select 5 people. = (12),(11),(10),(9),(8)  are the choices for…

Q: he manager of a theatre want s to know whether the majority of his patrons are adults or children.…

A:

Q: In a survey of students about favorite sports, the results include 21 who like tennis, 31 who like…

A:

Q: In a survey of 400 students in a school, 100 were listed as taking applejuice, 150 as taking orange…

A:

Q: Of 75 cars that were inspected, 13 needed brake repairs and 26 needed exhaust system repairs. If the…

A: Here given, needed 75 cars that were inspected brake repairs and 26 needed 13 exhaust system…

Q: A job interviewer has set 10 questions with four answer options and one correct answer. In how many…

A: The number of ways for two events to occur in a sequence is p×q. Here, p is the number of ways the…

Q: Out of 32 students in a class 5 said they ride their bike to school. Based on these results how many…

A: Unitary method : It is a method by  first determine the value of single unit and then determine the…

Q: A student representative group is composed of Adam, Beth, Cathy, David, Erica, Fritz, and Gideon.…

A:

Q: A survey of 500 high school students was taken to determine their favorite chocolate candy. Of the…

A: we have to find given  probability

Q: 50 people were surveyed about whether they like the ice cream flavors vanilla and 20 people liked…

A: Let the people who like vanilla be denoted by V and people who like strawberry be denoted by S.…

Q: On a 10 question multiple-choice English 12 quiz, 3 answers are A, 2 answers are B, 2 answers are C,…

A: The multinomial coefficient is the method to calculate the number of ways in which n objects can be…

Q: A person has 8 friends, of whom 5 will be invited to a party.How many choices are there if 2 of the…

A: Combination Rule:The arrangement of r objects from n different objects is given by:

Q: A woman has 11 close friends. In how many ways can she invite 5 of them to dinner if two of them are…

A: Given, A woman has 11 close friends. To find,  How many ways can she invite 5 of them to dinner if…

Q: A club of 136 members is in the process of choosing a president, a vice presider secretary, and a…

A:

Q: A student is to answer 7 out of 9 questions on a midterm test. i) How many examination selections…

A: i) Given that there are total 9 questions and he has to select 7 questions. So the total number of…

Q: In a survey it was found that 21 people liked product A, 26 liked product B and29 liked product C.…

A: Let A, B, and C be the set of people who like product A, B, and C respectively.  Now since 21 people…

Q: In a survey of 260 students, it is found that 78 like broccoli, 103 like cauliflower, and 56 like…

A: We will solve it by Venn diagram Let A be the set who like broccoli and B be the set who like…

Q: A girl has 9 skirts, 4 blouses, and 6 pairs of shoes. How many different skirt-blouse-shoe outfits…

A: 5) Given that the girl has 9 skirts, 4 blouses and 6 pairs of shoes. Total number of ways 9+4+6=19…

Q: Of 100 employees of a store located in downtown Boston, 36 people take the subway to work, 24 take…

A:

Q: Of the eighth graders at the Paxton school, 12 played basketball, 9 played volleyball, 10 played…

A: Please make a Venn diagram to understand what's going on here:

Q: real estate company has 20 houses listed for sale by their clients. In how many ways can 4 of the 20…

A:

Q: they

A:

Q: From a survey of 100 college students, a marketing research company found that 50 students owned…

A: Given form a survey of 100 college students a marketing researchcompany found that 50 student…

Q: At a restaurant 52 people were asked in a survey if they eat meat, fish, or both. Of those adults 10…

A: We can make a Venn diagram and clearly see from there.

Q: The newest cars have 12 different accessories and the buyer pays for each one separately.  If a…

A: Given, The newest cars have 12 different accessories A buyer wants to buy four accessories

Q: A TOTAL of 63 students preferred chocolate ice cream. Out of the 100 student responses, 43 were…

A: The contingency table is a two way table which is used to enter the data of two categorical…

Q: In a survey of 185 pet owners, 76 said they own a dog, and 79 said they own a cat. 11 said they own…

A: 185 total people's are surveyed, 76 said they own a dog and 79 said they own a cat. 11 said they own…

Q: A marketing company did a survey to find out what kinds of soda people drink. The survey found that…

A:

Q: Of the eighth graders at the Paxton​ School, 10 played​ basketball, 9 played​ volleyball, 10 played​…

A:

Q: Out of a group of 20 children, 10 drink tea, 9 drink coffee and 7 drink milo. 4 drink tea and coffee…

A: Given Number of children drink tea = n(T) = 10 number of children drink coffee = n(C) = 9 number of…

Q: In a survey of 91 ​people, 25 reported that they read the Star newspaper and 34 reported that they…

A: the problem is base on inclusion and exclusion principal of sets let n(A) denote the numbers of…

Q: A survey of 150 people was conducted to determine their favorite sport. 74 people like chess, 94…

A: We want to find number of people that not like any of the three sports.

Q: In a group of 500 students during vacation, 23% likes to go shopping only, 74% loves to stay at…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: A company conducted a marketing survey of college students and found that 191 own a bicycle and 74…

A:

Q: 100 people were surveyed about vacation places. 50 people said they liked the beach, 40 people said…

A: Total number of people surveyed = 100 Number of people liked the beach = 50 Number of people liked…

Q: there are 18 people from the mathematics department and 325 people from the computer science…

A: see my solution below

Q: A group of 200 UTAR students were asked whether they played soccer or basketball. Among the group,…

A: Define the Events, A : Played Soccer B : Played Basketball given, n(A) = 140, n(B) = 30, n(A∩B) =…

Q: Among the eight nominees for two vacancies on a school board are four men and four women. How many…

A: Solution: It is given that there are 8 nominees for two vacancies on a school board. There are 4…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.