In a study of children, a total of 1,548 children were examined. Of these, 1,017 had rickets. Of the 242 urban children in the study, 91 had rickets. How many children living in nonurban areas had rickets? How many children living in nonurban areas did not have rickets?

Q: How many possible meals are there?

A: here use fundamental of counting principle   The school canteen offers the following choices for…

Q: Of the eighth graders at the Paxton School, 15 played basketball, 9 played volleyball, 10 played…

A:

Q: how many ways can five persons line up to get on a bus?

A: The number of persons is 5.

Q: If 5 out of 7 students at a college are full-time students, what is the enrollment at the college if…

A:

Q: In how many ways can a class of 32 students select four people to serve on a committee?

A: Total number of students in the class (n) = 32 Number of students to be selected to serve on a…

Q: In a survey of 400 investors, it was reported that 283 had invested in stocks, 226 had invested in…

A:

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: During a recent election, 48 of every 100 registered voters in a certain city voted. If there were…

A:

Q: A group of 107 people were polled about their common means of transportation. Fifty of them said…

A: We use the Venn diagram to solve the given question.

Q: How many 7-member committees could you form from a set of 9 people?

A: There are total 9 people.  We have to select 7 people from them. Since we are forming a committee,…

Q: In a survey of 50 music lovers, 18 enjoyed classical music, 29 enjoyed popular music, and 14 enjoyed…

A: see below the answer and calculation

Q: How many ways are there to choose first, second, and third prizes in an art contest with 18 entries?

A: Introduction:According to the permutation rule, if r distinct items are to be chosen from n items…

Q: A survey of 131 persons was conducted at TCC, and it was found that 82 persons carried a cell phone,…

A: According to bartleby policy I have solved first three subparts. I hope it will help you

Q: Out of 9 children, in how many ways can a family have at least 1 girl?

A: We have given that, 9 children i.e. n=9 and family have at least 1 girl i.e. r=1   Combination…

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: 40. Of 1,000 people consulted, 811 liked chocolates, 752 liked toffees and 418 nd

A: Given problem Given that   Method 1 :

Q: In a survey at a local university, 25% of students say that they get less than the recommended eight…

A: Given  Total students = 3900 Percentage of Students get less than the recommended eight hours of…

Q: A survey of 93 persons was conducted at TCC, and it was found that 53 persons carried a cell phone,…

A: Given, 1. people carried a cell phone or a tablet is

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: If 4 out of 6 students at a college are full-time students, what is the enrollment at the college if…

A:

Q: A committee of 6 people, with three of the six to be designated chair, vice-chair, and secretary, is…

A: 5. In a group there are 15 people. A committee of 6 people has to be selected, in which 3 must be…

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: If there are four judges and three contenders in a show choir competition, and each judge shall…

A: Combination: The formula for combination of n objects taken r at a time is given as follows: It is…

Q: A survey of 71 persons was conducted at TCC, and it was found that 40 persons carried a cell phone,…

A: Note: according to our guidelines we can answer only first three subparts A survey of 71 persons was…

Q: (a) If a student must answer 8 of 12 questions on an examination, how many different selections of…

A: Given:  A student must answer 8 of 12 questions on an examination  To find:a) The different…

Q: How many of the 3088 subjects used at least one prescription​ medication?

A: Number of adults aged 57 through 85 years in a survey, n = 3088 p be the probability that an adult…

Q: they

A:

Q: Suppose the group of twelve consists of five men and seven women. a) How many five-person teams can…

A: A group consist of fire men and sexes women. We have to make a fire person team with 3men and 2…

Q: How many ways to choose 4 out of the 10 candidates to be sent to a conference?

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

Q: In a survey of employees at a fast food restaurant, it was determined that 16 cooked food, 13 washed…

A: Given: (1) 16 cooked food, 13 washed dishes, 25 operated the cash register. (2) 7 cooked food and…

Q: A survey of 600 school employees yielded the following information: 325 were instructors, 442 were…

A: Given data, instructors= 325 full-time faculty=442 instructors were full-time faculty=255   No of…

Q: There are five people at a volleyball tournament. In how many ways can a team of three be chosen?

A: The number of ways r items can be chosen out of n items is equal to C(n,r) . The formula for C(n,r)…

Q: In a survey of 124 pet owners, 28 said they own a dog, and 78 said they own a cat. 26 said they own…

A:

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: In a survey of 800 investors conducted by DBB Data Analytics Company, it was reported that 400…

A:

Q: A health inspector must visit 3 of 8 restaurants on Monday. In how many ways can she pick the 3…

A: Total number of restaurants is = 8  She has to pick 3 restaurants.  Here the arrangement does not…

Q: In a sample of 310 people, 186 completed only high school, 24 completed only some college, 93…

A: Given data A sample of 310 people is given. 186 completed only high school. 24 completed only some…

Q: A city soccer league has 8 teams.  In how many ways could the league assign first, second, and…

A: There are total 8 teams We have to pick 3 teams from those 8 teams.  Since it is ranking, so order…

Q: If a club consists of 13 ​members, how many different arrangements of​ president, vice-president,…

A:

Q: If there are 13 employees in a club, in how many ways can they choose a dishwasher and a bouncer?

A: Given information- We have given that there are 13 employees in a club. They want to choose a…

Q: In how many ways can a committee of 12 men and 12 women be selected from a panel of 36 men and 40…

A:

Q: On a youth soccer team 3 out of 12 team members have played in previous years. Based on this…

A: The formula of mean is,

Q: Out of a population of 52 people, how many possible samples of size 2 are there?

A: Given information- Population size, n = 52 Sample size = 2 We have to find the number of possible…

Q: in a survey of 14 college students, it was found that 9 were taking an English class, 7 were taking…

A: We can solve given problem by Venn- diagram:

Q: A speech class teacher is going to rank five different speeches from 12 available speeches. In how…

A: Given that  A class teacher is going to rank five different speeches from12 available speeches. We…

Q: According to an​ almanac, 70​% of adult smokers started smoking before turning 18 years old. If 200…

A: We are given,Percentage of adults who started smoking before turning 18 years old= p = 70% =…

Q: If a club consists of 15 ​members, how many different arrangements of​ president, vice-president,…

A:

Q: According to a survey, 30 adults in Makati watch an average of 4 hours of television per day, and 30…

A: Use formula of average