A school survey found that 7 out of 30 students walk to school. If two students are selected at random without replacement, what is the probability that both students walk to school? 30 49 900 49 90 7. 145

Q: Of the drivers who stop at a gas station, 91% purchase gasoline, and 5% purchase both gasoline and…

A: Given : Of the drivers stopping at a gas station, 91% purchase gasoline, 5% purchase both gasoline…

Q: Dana Hills High School was considering going back to campus rather than remote instruction for the…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: Giving a test to a group of students, the grades and gender are summarized below                 A…

A:

Q: Netflix took a survey of 500 subscribers to determine who likes watching Lucifer, The Witcher, and…

A:

Q: A survey of 200 people was conducted to see if they smoke.   The results are shown in the table.…

A: The general formula for conditional distribution is,

Q: one

A:

Q: Giving a test to a group of students, the grades and gender are summarized below A C Total Male 15…

A: Given data, P(Male or got A)=?

Q: A survey showed that 23% of college students read internet news on a regular basis and that 81% of…

A:

Q: A supplier of automotive parts has a quality problem. Out of a representative batch of 250 products…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: A fruit retailer complains to a wholesaler that 60 percent of the boxes of apples shipped to the…

A: Given:X: Number of boxes contain rotten applen: Sample size = 15p: Proportion of the boxes of apples…

Q: Forty-three percent of Americans use social media and other websites to voice their opinions about…

A: From the provided information, The table can be constructed as:   Uses social media and other…

Q: Android Users Iphone Users Total   Ages 18 – 30 405 653 1058   Ages 31 – 40 687 538 1225…

A: Given the sample of age groups compared to android and iPhone users To find:  The probability of…

Q: Giving a test to a group of students, the grades and gender are summarized below A Total Male 14 16…

A: Given Male=50 Female=40

Q: In a survey of single-pet owners, it was found that some had cats and some had dogs. The following…

A: Total female is 90. Total cat is 80. Number of female on cat is 68. Total people is 140.

Q: A doctor's office surveyed patients about their eating and exercise habits. The responses are…

A: According to given figure probabilityP of patients reported eating healthy or exercise regularity is…

Q: A study reports that 68% of all people own dogs. Suppose that two people are chose at random from…

A: Event is the outcome of the experiment. There are two types of events, they are independent and…

Q: Giving a test to a group of students, the grades and gender are summarized below A Total Male 11 10…

A:

Q: During a Formula 1 test. 25% of the cars that participated in the test experienced a tire blowout.…

A: Correct answer is  (C) 0.1484

Q: Approximately 20% of the US population smokes cigarettes. A local government believed their…

A: Given data: The given percentage of the US population who smoke cigarettes are p=20%=0.20. The…

Q: A survey at a restaurant in small western town yielded the data below: travelers : married 27,…

A: General formula of probability is ,  Probability = Number of favorable outcomesTotal outcomes

Q: In Russia, 57 percent of the population use public transportation. In a sample of 10 individuals,…

A: Its binomial probability

Q: After giving a test, below is the summary of grades by gender. A B Total Male 18 12 5 35 Female 11 9…

A:

Q: It is known the 60% of toddlers have too much screen time. A randome sample of 8 toddlers were…

A: Ans - Given, 60% of toddlers have too much screen time. Using binomial distribution  With parameter…

Q: According to the table below, what is the probability that the grade of a student chosen at random…

A: Solution-: We have following table: Grade A B C D F Probability 2/35 3/35 17/35 9/35 4/35 We…

Q: A survey of 200 people was conducted to see if they smoke. The results are shown in the table. Male…

A: The probability that the person is a male or a smoker is obtained below: The results are shown in…

Q: Giving a test to a group of students, the grades and gender are summarized below                 A…

A:

Q: Giving a test to a group of students, the grades and gender are summarized below Total Male 14 21…

A: Given,

Q: Suppose a basketball player is a 73% free-throw shooter and he attempts 10 free throws. a. What is…

A: From the provided information, A basketball player is a 73% free-throw shooter that is p = 0.73…

Q: Of the drivers who stop at a gas station, 92% purchase gasoline, and 5% purchase both gasoline and…

A:

Q: Giving a test to a group of students, the grades and gender are summarized below Total Male 4 10 18…

A: Solution: Let A be the event that the student was male and B be the event that the student got a…

Q: What is the probability that a female is chose given they like a Toyota? Honda Toyota Total Male 17…

A: In this question,we find the probability that a female is choose given they like a tayota.…

Q: What is the probability that a particular top executive reads either Time or U.S. News & World…

A: Define some events A: A top executive reads Time B: A top executive reads U.S news and World…

Q: A survey of 200 people was conducted to see if they smoke.   The results are shown in the table.…

A: The provided data is,

Q: The CDC did a study on various ways to quit smoking. The results of the study are shown below.…

A: Obtain the probability that the person was still smoking at the end of the study.   The probability…

Q: A study by the National Park Service revealed that 50 percent of vacationers going to the Rocky…

A: The following information has been given: The probability of vacationers visit Yellowstone Park is…

Q: In the winter, guests who visit Yosemite National Park like to stay at an overnight lodge in the…

A: From the provided information, Guests who visit Yosemite National Park like to stay at an overnight…

Q: On average, a textbook author makes three word-processing errors per page on the first draft of her…

A: Given The author makes three word processing error per page

Q: What is the probability that a student selected randomly is a Democrat or a Republican? Do not write…

A:

Q: An online fashion show features an advertisement for a clothing line brand. According to a marketing…

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

Q: Risk Management: 80% of people who purchase pet insurance are women. If 9 pet insurance owners are…

A:

Q: Giving a test to a group of students, the grades and gender are summarized below A Total Male 14 12…

A: Probability:   The ratio of the number of favorable outcomes to certain event and total number of…

Q: Giving a test to a group of students, the grades and gender are summarized below C Total Male 14 20…

A:

Q: d) If gender does not have any effect on employment, calculate the probability that the graduate…

A: The contingency table is   Female Males Total Employed 30 10 40 Unemployed 20 40 60 Total…

Q: The Laurier Company's brand has a market share of 30%. Suppose that 1,000 consumers of the product…

A:

Q: The local high school is hosting an ice cream social for new students. They record the ice cream…

A: Formula : P(A|B) = P(A and B)/P(B)

Q: It is known that​ 35% of students change their major in college. In a random sample of 500​…

A:

Q: Alex surveyed some students at his school, asking them about their favorite sport and whether they…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: Based on the CEOs perception a company estimates that a new product will be purchased by 32% of…

A: the CEOs perception a company estimates that a new product will be purchased by 32% of current…

Q: Giving a test to a group of students, the grades and gender are summarized below C Total Male 7 26…

A: Solve for the probability

Q: Giving a test to a group of students, the grades and gender are summarized below В Total Male 8. 9.…

A: Solution: 1. The given table of data is