in a mall survey, 200 consumers were asked where they did their gift shopping; Macy’s, JC Penny’s, or Sear’s. If 40 people shopped at least at two different stores and 50 people shopped at neither of the stores, how many people shopped at exactly one store?

Q: In a football league, each team plays each of the other teams twice during the season, once at home…

A: Here we will going to use basic concept of Combination.

Q: On a math exam, students must answer 5 out of 7 questions from Part A and only 2 out of 4 questions…

A: Introduction: Suppose, there are n different objects. Out of the total number of objects, r objects…

Q: If women represent 53% of a town, and there are 9,805 women in the town, how many people are in the…

A: Let there are total X people in the town.

Q: The average age of the members of a country club is 54 years old. If there are ten 36-year-olds,…

A:

Q: A company conducted a marketing survey of its clientele and found that 160 own an iPhone and 89 own…

A: Given that, A company conducted a marketing survey of its clientele and found that 160 own an iPhone…

Q: Kevin wants a new paddle​ board, and will buy a package consisting of a​ board, custom​ fin, and…

A: Kevin wants a new paddle​ board, and will buy a package consisting of a​ board, custom​ fin, and…

Q: john has 10 apples and kate took 5 away how many apples are left?

A: When kate take you are subtracting.   John  originally had 10

Q: A student is to answer 12 out of 15 questions on an exam. How many choices does he have?

A: The total number of questions in the exam is 15. The student has to answer 12 out of 15 questions.…

Q: In the United States Senate, each state is represented by one junior senator and one senior senator.…

A: From the given information. The total number of states in the Midwest is 12. Each state is…

Q: An eyewitness to a crime said that the license plate of the getaway car began with the letters T,…

A: Given: An eyewitness to a crime said that the license plate of the getaway car began with the…

Q: In a race of 24 people, the top 8 are awarded different amounts of prize money, with first receiving…

A: Permutation: The number of different arrangements of ‘r’ elements (order matters) from a set of ‘n’…

Q: How many different routes can a saleswoman have if she must visit eight different companies in a…

A:

Q: At Rosemont High School, 14 players are on the varsity bas- ketball team, 35 players are on the…

A: Given: Let A denotes the varsity basketball team and B denotes the varsity football team then,…

Q: If an island's only residents are penguins and bears, and if there are 22 heads and 52 feet on the…

A:

Q: A certain brand of razor blades comes in packages of 6, 12, and 24 blades, costing $2, $3, and $4…

A: Let x be the number of $2 6 packs, y the number of $3 12 packs and z be…

Q: On Halloween, a cartoon character, a bumble bee, a viking, a forest ranger, and a butterfly ring the…

A: here 6 people are in line and come one by one.  here order os selection matters  so this is case of…

Q: In a group of dogs and their owners, there are exactly 20 heads and 64 legs.  How many dogs are in…

A: Let, x be No of men. y be no of dogs   Men consists of 2 legs and dog has 4 legs.   x+y=20 2x+4y=64

Q: If we 5 apples and we take 3 away, how many do we have now?

A: Given that,                  Total apples =5                  take away apples=3

Q: From a group of 20 children, how many must you choose, if you want to make sure two of them have…

A: There are 12 month in a year, thus let m=12. Let n denote the number of chosen children who have…

Q: During a PICE officers meeting, each officer shakes hands with all the others. Assuming that each…

A:

Q: How large was the audience of each of the four companies at the end of that year? Microsoft Time…

A: Here by solving given equation retrieve value of x ,y,z and u

Q: f there are eleven​multiple-choice questions on an​ exam, each having three possible​ answers, how…

A: Given that  Number of multiple choice questions in exam (n) = 11  Each question has 3 possible…

Q: In a survey of 1000 students it was found that 840 own a cell phone, 450 own an MP3 player and 370…

A:

Q: In a survey conducted by Helena, a financial consultant, it was revealed that of her 400 clients,…

A:

Q: A local sporting goods store is celebrating its grand opening by giving a free t-shirt to every 5th…

A:

Q: Harry has to visit 10 cities. He can visit three in any one day, and the order in which he visits…

A: Combinations: The number of combinations of r items selected from n items is, nr=n!n-r!r! Harry has…

Q: At a charity benefit with 33 people in attendance, three $50 gift certificates are given away as…

A:

Q: How many different outfits could you wear if you were to select from four sweaters, six pairs of…

A:

Q: A pottery studio gives three- hour and four- hour ceramics classes for $49 an hour. If the studio…

A:

Q: Suppose thirty-two students signed up for classes during an orientation session. If exactly twenty…

A: Follow the next steps for the solution. The detailed step by step solution by Polya's problem…

Q: A company buys 9 computers, and it plans to connect each pair of computers by a cable (one cable per…

A: Given that there are total 9 computers. They will connect each pair of computers. That means we have…

Q: The manager of the winning soccer team chooses three of the 20 members to be interviewed by a sports…

A:

Q: If I have 8 apples and take away 4, how many do i have left?

A: You have 8 apples and 4 apples are being taken away. This means number of apples which you have is…

Q: Suppose Albers Elementary School has 39 teachers and Bothel Elementary School has 98 teachers. If…

A:

Q: If a guy has 4 apples and he gives away the 3 how many apples will he have ?

A:

Q: If there are 5 logs in a pile of 30 that have sap on them, how many logs will have sap out of 360?

A: Given:--Number of logs that have sap on them in pile of 30 = 5 To Find:- Number of logs that have…

Q: A company conducted a marketing survey of its clientele and found that 215 own an iPhone and 106 own…

A: It is given that 215 of the clients own an iPhone and 106 own an iPad. If 19 clients own both an…

Q: 139 people attend a concert and tickets for adults cost $4 while tickets for children cost $2.5 and…

A:

Q: In a class of 25 students, 17 lived with both parents, 21 lived with their mothers, and 20 lived…

A: Here we have to solve the following problems using Polya's problem-solving steps.

Q: A theater charges $50 per ticket for seats in section A, $30 per ticket in section B, and $20 per…

A:

Q: If 135 students love their English class, and 80% more love their math class, then how many students…

A: Given that  If 135 students love their English class 80% more love their math class,  To find the…

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

A:

Q: In a group of 65 ice cream lovers, 45 like Cherry Garcia, 34 like Chocolate Therapy and 18 like…

A:

Q: Suppose thirty-two students signed up for classes during an orientation session. If exactly twenty…

A: Given that: Total number of students = 32Number of students signed up for chemistry =20Number of…

Q: are buying 10 t-shirts and have as many of each type

A: Given, You are buying 10 t-shirts and there are 8 different colors to choose from.

Q: If a family has seven children, in how many ways could the parents have three boys and four girls?

A: Since there are 7 children. To find the number of ways such that parents have three boys and four…

Q: In a birthday party, each person shakes hand with every other person. If there was a total of 36…

A:

Q: A cable company offers its 1000 customers two special services: high-speed internet and digital…

A: Let U be the set of all customers, X be the set of customers using high-speed internet and Y be the…

Q: A hospital report indicates 25% of its patients had an MRI in January. If 1,060 patients were…

A: It is given that the number of patients is 1,060 and the percentage of patients had an MRI in…

Q: During a summer camp, all the children have to be separated into 8 different groups. If there were…

A: During a summer camp, all the children have to be separated into 8 different groups. If there were…

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.