18. On the average, two students per hour report for treatment to the first-aid room of a large elementary school. (a) What is the probability that during a given hour three students come to the first-aid room for treatment? (b) Whatis the probability that during a given hourtwo or fewer students will report to the first-aid room? (c) What is the probability that during a given hour between three and five students, inclusive, will report to the first-aid room?

Q: 19. Suppose mass-produced needles are packed in boxes of 1000. It is believed that 1 needle in 2000…

A:

Q: (a) If one of the participants is selected at random, what is the probability that he or she favors…

A: According to the answering guidelines,  we can answer only three subparts of a question and the rest…

Q: 8. The National Meat Inspection Service (NMIS) reports that, under its standard inspection system,…

A: Given that the NMIS reports that, under it's standard inspection system, one in every 100…

Q: 17. What is the probability that a randomly selected person would be a Female ana had a Negative…

A: Provided information is, a market research study is being conducted to determine if a product…

Q: The average number of automobiles per minute stopping for a gas at a particular service station…

A: Let us denote: X=the number of automobiles per minute stopping for gas at a particular service…

Q: ontribute to household expenses. 23% of them contribute. a.      What is the probability that at…

A: NOTE:  As per the guidelines, we are supposed to solve the first three sub parts only. Given:…

Q: a. What is the probability that more than three letters were dropped in both mailboxes X and Y…

A:

Q: (b) What is the probability that a randomly vaccinated person does not become ill with the…

A: here define events ,  person get side effect  =  S Sick(ill) from corona Virus  = C p(C') = 0.65  ,…

Q: What is the probability that 15​,16​,17​,18​, or 19npeople in the sample are in favor of retaining…

A: d. Obtain the probability that 15, 16, 17, 18, or 19 Spaniards from the sample are in favor of…

Q: A survey of 200 college graduates who have been working for at least three years found that 65 owned…

A: We have to use union and intersection of set to find the various probabilities.

Q: It was revealed that 5% of all automobiles in a city did not pass inspection. Of the next ten…

A:

Q: 4. The Traffic Violations Department receives 5 violations per hour, find the probability that it…

A:

Q: a) Assuming that the survey is representative of all married working couples, what is the…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks Given Data :…

Q: The guidance counselor of a large high school reports that 48.5% of Junior Pre-Calculus students…

A: Let S denote the students sign up to take AP statistics next year and C denotes the students sign up…

Q: 3. A bank has the following data on the gender and marital status of 200 customers. What is the…

A:

Q: 3. According to a July, 1999, article in the New York Times, venture capitalists had this rule of…

A: Solution

Q: A hospital finds that 25% of its accounts are at least 1 month in arrears. A random sample of 450…

A: Let us denote: X=the number of accounts that were at least 1 month in arrearsGiven that n=sample…

Q: According to the Australian Bureau of Statistics, during a particular year, the country’s population…

A: The mean is, μ=np=200×0.226=45.2 The mean is 45.2 The standard deviation is,…

Q: (a) Suppose a mechanic begins to diagnose the problem by checking the spark plugs first and find…

A:

Q: (iii) If there are a total of 100 concrete piles, what is the probability that 80 concrete piles are…

A: Binomial distribution, and standard normal dist are applicable to solve the (iii) part

Q: a. What is the probability that more than 820 consumers claim that howa company handles a crisis…

A:

Q: (a) What is the probability that a randomly chosen male respondent or his partner has blue eyes? (b)…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 10. A movie theatre estimated that when a random ticket holder is VIP, there is a 1/7 chance that…

A: Given information: PPerson will be over 30 years old=17PWomen=25

Q: An auditor for Health Maintenance Services of Georgia reports 40% of policyholders 55 years or older…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: a. What is the probability that exactly 10 are from their elementary school? b. What is the…

A: Given:  In one of the biggest schools in Metro Manila, 80% of their high school students are known…

Q: following probability model shows the number of cars owned by American households, along with the…

A: Given that ; Let x represents the number of owned cars by American household.  P(X = x) is the…

Q: 4. One prominent physician claims that 70% of those with lung cancer are chain smokers. If this…

A: Given problem is :

Q: It is estimated that 3000 of the 9000 voting residents of Socorro-Texas are against republican…

A: Note: Thank you for the question. Since multiple questions are posted, according to our policy, we…

Q: 3. A traffic control engineer reports that 75% of the vehicles passing through a checkpoint are from…

A: 3)  -probablity is 3/7

Q: What is the probability that a five-card poker hand from a standard deck has two pairs of non-face…

A: There are 52 cards in a standard deck. 5 cards can be chosen in 525 ways Now, there are 4 face cards…

Q: A survey of 200 college graduates who have been working for at least three years found that 85 owned…

A:

Q: What is the probability that between 10:00 and 10:30 the switchboard will receive more than 9 calls…

A:

Q: (a) What is the probability that in a randomlý sampled individual, gene 1 is dominant? (b) What is…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: An airline tracks data on its flight arrivals. Over the past six months, 70 flights on one route…

A: The general formula of probability is: Probability=Number of favourable outcomeTotal number of…

Q: The following table gives the estimated probabilities that a randomly selected subscriber will…

A:

Q: 1. What is the probability that a student selected at random prefers peach slices as a snack? 2.…

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: a) If 20 melanoma patients are given Interleukin-2 plus a vaccine, what is the probability that…

A: Given: Number of patients = 178 Group A received interleukin-2 only, Group B received interleukin-2…

Q: According to the Open Doors Report, 9.5% of all full-time U.S. undergraduate students study abroad…

A: a)   The percentage of undergraduate students study abroad is 9.5% The percentage of undergraduate…

Q: According to the American Automobile Association (AAA), 5.3% of Americans plan to travel by car over…

A:

Q: 1. One prominent physician claims that 65% of persons with lung cancer are smokers. If the claim is…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: A survey of 200 college graduates who have been working for at least three years found that 65 owned…

A: If there are n mutually exclusive, exhaustive and equally likely outcomes of a random experiment and…

Q: (a) If two dice are rolled, what is the probability that the sum of the upturned faces will equal 7?…

A: The number of cases where the sum of upturned faces = 6 Total number of outcome = 36   The…

Q: 2) A CNN/USA Today/Gallup poll in April 2005 reported that 75% of adult Americans were satisfied…

A: 2) Given information: It was stated that in April 2005CNN/USA Today Gallup poll reported the…

Q: Suppose a math class contains 37 students. There are 23 females (four of whom speak Spanish) and 14…

A: From the given information we make a table   Male Female Total Speaks Spanish 4 4 8 Do not…

Q: (a) What is the probability that more than two calls are received in a one-hour period? (b) What is…

A: Here As per POLICY I HAVE CALCULATED 3 subpart only

Q: i. What is the probability that a male chosen do not have pneumonia problem? ii. Determine the…

A: here use tree structure define events D =male have pneumonia S = male is smoker

Q: Eleven percent of American children (ages 4 to 17) have Attention Deficient Hyperactivity Disorder…

A:

Q: 2a. What is the probability a salesperson selected at random will have a fair potential for…

A: Probability: The formula for probability of an event E is as follows: P(E) = (number of favorable…

Q: 2. A shipment of twelve smartphones contains seven with cracked screens. If sold in a random order,…

A: Given, Total no of smart phones in shipment = 12 Total no of smart phones with cracked screens = 7…