2. On average, a saleslady in a department store spends with her customer is 4 minutes. a) Find the probability that the saleslady spends more than 3 minutes with a customer? b) Find the probability that the saleslady spends between 4 to 5 minutes with a customer?

Q: In a system with a single server, the probability that the server busy is 90%. What is the…

A: Given : P(server busy ) = 0.90 P(server not busy) = 1 - 0.90                              = 0.10

Q: Assume that the probability of a boy being born is the same as the probability of a girl being born.…

A: given data  P(boy)=P(girl) = 0.5 n = 5 childrens  P( atleast one boy) = ?

Q: f obtaining more tails than head

A: Since the number of outcomes with the 4H and 4T is C(8,4)=70, there is an equal possibility for the…

Q: If the passing grade is 9 correct answers, what is the probability that the student will fail?

A: Since there are 4 possible answers among which one is correct therefore Probability of correct…

Q: Show complete solution. Answer is not an error.  The average number of field mice per acre in a…

A: Given that  The average number of field mice per acre in a 5-acre wheat field is estimated to be 10.…

Q: Suppose that voters arrive at a polling station at the rate of 120 per hour. Find the probability…

A: Given: The probability having 200 voters that will arrive within two hours of each other.  Hence,…

Q: A restaurant accepts cash or credit cards. The store manager knows the probability of a customer…

A: The random variable  is the number of customers using cash.Number of customers: Probability of a…

Q: Suppose you have 10 tennis balls and you randomly pick some number of them. What is the probability…

A: Given the event that there are 10 tennis balls and one randomly pick some number of them.

Q: The probability that team A loses against team B is 0.6 and the probability that team C wins against…

A: Let μi denotes the performance score for the team i. Thus, the performance score for teams A, B, and…

Q: The probability that a person living in a city owns a pet is estimated to be 0.4. Find the…

A: Given: Prob. that person owns a pet, p=0.4 No. of success, r=3

Q: The probability of getting a girl is .541. What is the probability of having at least 2 girls?

A: A couple is planning on having 5 children. The probability of getting girl is 0.541. Probability of…

Q: You order 13 pizzas, five that are cheese and eight that are mushroom. They arenot labelled on their…

A: There are total 13 boxes.  We can pick any 5 boxes from those 13 boxes in 13C5 ways.    If we want…

Q: The probability that a person is accepted for admission to a specific university is 0.6. Determine…

A: Introduction: If X ~ Binomial (n, p), then the probability mass function of X is: Here, n is…

Q: Assume that male and female births are equally likely and that the birth of any child does not…

A:

Q: a television game show has 14 doors, of which the contestant must pick 2. Behind 2 of the dorrs are…

A: It is given that the In a television game show, there are 14 doors and behind the door, there are…

Q: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: The probability that a student will matriculate is 0.4. Find the probability that out of 5 students…

A:

Q: Suppose you know that a friend has 2 children and you know that the older child is a girl.  You…

A:

Q: Assume that male and female births are equally likely and that the birth of any child does not…

A: Given that, Male and female births are equally likely and that the birth of any child does not…

Q: The probability that I make a free throw is 0.2. I plan to shoot free throws untill make 5 free…

A:

Q: if the probabilty that junior goes to the grocery store is 0.6 and the probability that he buys…

A: P(junior goes to the grocery store) = 0.6 P(buys strawberries given he is at the grocery store) =…

Q: a coin and a dice roll together six consecutive times. What is the probability of encountering for…

A: Given: Number of rolls = 6 Number of faces in a dice = 6 The sample space in one roll = (H1, H2, H3,…

Q: he probability for a student to pass an test is 0.75. The student will take 7 test in the future.…

A:

Q: If half of the 100 passengers are​ men, find the probability that the mean height of the 50 men is…

A: The mean is 69 and standard deviation is 2.8.

Q: Can the value 6 6 be a probability?

A: Solution

Q: What is the probability that no two boys are sitting together for a photograph if there are 5 girls…

A:

Q: Refer to the table which summarizes the results of testing for a certain disease. A test subject is…

A: From given :   Positive test Negative test Total Has disease 144 17 161 Does not have disease…

Q: The probability of a grand piano selling for more than $58,600 is 0.2727. As these pianos sell…

A: The probability that a grand piano is sold for more than While selling these pianos, the probability…

Q: If the probability that you get a grade of "A" in this class is 90%, find the probability that you…

A: Given information Probability that you get a grade of "A" in this class p = 0.90

Q: Can the value 2 be a probability?

A: Valid conditions for probability: The probability is non-negative. That is, the probability is…

Q: The probability that a high school student get less than 5 hours of sleep on average is 35.2%. The…

A:

Q: please solve

A: Step 1:Step 2: Step 3:Step 4:

Q: Determine the probability that will get 4 green lights in a series of 5 lights.  Assume the chance…

A: Given: The total number of lights are n=5. The probability of a light being green is p=0.4. Let X be…

Q: An airplane has 100 seats for passengers. Assume that the probability that a person holding a ticket…

A: Let X be the number of persons holding a ticket appears for the flight.From the given…

Q: Determine the probability that 31​, 32​, 33​, 34​, or 35 flights will arrive on time

A: We have given that Sample size, n = 39 Probability of success, p = 0.819

Q: Suppose that the probability that a child living in an urban area in the US is obese is 20%. A…

A: Given:Number of children living in an urban area (n)=10Probability(P)=0.20Explanation:Let’s x is…

Q: If the auto parts sales have increased, find the probability that car sales will also increase…

A: The probability that car sales will increase next month is 0.45. The probability that sale of auto…

Q: Suppose you are going to form a committee of students and faculty. You have 7 total students and 12…

A: Solution

Q: Suppose there are 12 blue, 8 white and 6 red balls in a bag. If one ball is randomly selected…

A: Answer: From the given data, Number of blue balls = 12 Number of white balls = 8 Number of red balls…