You select 7 statistics students at random, with replacement. What is the probability that exactly 3 sleep on their backs?

Q: Suppose that you sampled 2 CEOs with replacement instead. How many different samples are possible,…

A: Sampling is a process which is used in statistical analysis. In sampling a predetermined number of…

Q: This problem involves students who have taken Calculus in high school. Assume that 15 percent of…

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

Q: In a dental study on children it was found that the probability of the child population having any…

A: P(C) = p = 2/3 P(Not C) = q = 1-p= 1/3

Q: Two cards are selected with replacement from a standard deck of 52 Find the probability of selecting…

A: the probability of selecting a 4 and then selecting a 5 selecting a 4 have  4 possible cases…

Q: Nine percent of the population has blood type B. If we choose 18 people at random, what is the…

A: Given,n=18p=0.09q=1-0.09=0.91Let X= no.of people have blood type B in a sample of 18…

Q: What is the probability of picking one person who is 30 years and above given that he reads non…

A:

Q: If you flip a coin four times, what is the probability of getting at least a head and at least a…

A: probability of getting at least a head and at least a tail =1- Probability of having no head and…

Q: If you are interested in the probability of two successes out of five trials, what is the correct…

A: Given  Let p be the probability p=0.30,  n=5. X~Bin(n=5,p=0.30) P(X=2)=?

Q: when a coin is tossed

A: A coin is tossed 2 times.

Q: Among the adults in a large city, 30% have a college degree. A simple random sample of 100 adults is…

A:

Q: In an assembly of 200 people there approximately 2% of them are civil engineers. If we randomly…

A: Givenn=200p=0.02x=no.of people being civil engineersx~Binomial(n=200,p=0.02)P(X=x)=Cxn px (1-p)n-x…

Q: A certain high school has enrolment of 1200 students. It is known that 355 students take Calculus,…

A: Given values, Total number of students = 1200 Number of students who can take Calculus = 355 Number…

Q: If you select a three-digit number at random, what is the probability that the units digit is 7?…

A: We have to find the probability that the units digit is 7 and probability that the hundreds digit is…

Q: A fair coin is tossed 25 times. What is the probability that there will be at least 20 heads?

A: Let, X= number of heads  probability of getting a head (success)= p =1/2 =0.5 Probability of…

Q: You randomly draw five cards from a standard 52-card deck.What is the probability of getting exactly…

A: Introduction: Suppose an experiment has a total of n mutually exclusive and exhaustive outcomes. If…

Q: If the probability of having type AB Blood is 0.520, what is the probability that in a group of four…

A: Given: P( having AB blood) = 0.520 n = 4

Q: You randomly draw five cards from a standard 52-card deck.What is the probability of getting no…

A: Given information- We have given a standard deck of 52 cards. We have to draw 5 cards randomly. We…

Q: What is the probability of selecting one person at random who is a smoker?

A: From the provided information, Total person = 100 Number of persons who smoke = 54

Q: 4. If one card is randomly selected from a deck of cards, what is the probability of selecting a…

A: Here AS per note given I have calculated 4

Q: A fair is tossed three times. What is the probability that you will get at most two heads?

A: GivenA fair coin is tossed three timesSample space is given byS =…

Q: A jar contains 20 berries, 14 sweet and 6 sour. If you pick a berry at random, what is the…

A: Given that, A jar contains 20 berries 14 sweet and 6 sour.

Q: suppose we select one card from a standard deck of 52. what is the probability of selecting a club?

A: given data select one card from a standard deck of 52 cards. p(selecting club) = ?

Q: A fair coin is tossed four times. What is the probability of obtaining  A) Exactly one head?

A: The probability of getting head is   Let the R.V X denotes the number of heads and it follows the…

Q: Color blindness has a rate of about 5% among males. If you pick a group of 15 males, what is the…

A:

Q: This problem involves students who have taken Calculus in high school. Assume that 25 percent of…

A:

Q: What is the probability that he will roll a number greater than 2

A: Given:  A six pair to dice rolled from  S={1,2,3,4,5,6}  then to find probability that number…

Q: Select one card from a deck of well-shuffled cards. What is the probability we select a face or a…

A: Given : Let A be the event of getting face card from a deck of well-shuffled cards  P(A) = 1252 Let…

Q: A coach claims that no more than 1/4 of undergrad students will attend football games. What is the…

A: Central limit theorem: The central limit theorem states that the sampling distribution of the sample…

Q: What is the probability of throwing a total of 8 or 11 in a single throw of a pair of dice?

A: GivenA pair of dice is thrownThe outcomes…

Q: What is the probability of a family having five boys born in a row?

A: chance of having a boy, is 0.5. and to have 5 boys in a rowit is with same chance always…

Q: Fifteen percent of the students at Central High take Spanish, 12% take French, and 4% take both. If…

A: SOLUTION-

Q: 1) Estimate the probability that a randomly selected household from this area will be a student.…

A: According to the classical definition of probability, the probability of an event is defined as the…

Q: A class consists of 10 males and 30 females. If one student is randomly selected from the class,…

A: We have given the  that  10 males  30 females  Total = 40

Q: What is the probability of having 4 boys given the oldest is a boy?

A: Solution

Q: A fair coin is flipped twice. What is the probability of showing heads on both flips?

A: Given: A fair coin is flipped twice. Objective of this question is to find the probability of…

Q: What is the probability that a randomly chosen senior will have a GPA greater than 4.1? The…

A:

Q: A fair coin is flipped 16 times. What is the probability that exactly 8 heads​ appear?

A: Given,n=16p=P(getting a head)=12 X=getting no.of headsP(X=x)=cxn px(1-p)n-x ; x=0,1,2,3.....n

Q: The US population is 13% African American. If Americans, a) what is the probability that the sample…

A: Given: Population Proportion=p=0.13 sample size=n=500

Q: What is the probability of getting 6 or more girls in 8 births

A:

Q: Approximately 11% of students at BCC are Criminal Justice majors. If you take a simple random sample…

A: Let X= number of students who are Criminal Justice majors the probability of a student being…

Q: About 8% of the US population catches the flu each season assuming everyone has equal probability of…

A:

Q: What is the probability that a randomly selected song had 501-1,000 plays and was rock?

A: The row totals and column totals are given in the following table:

Q: What is the probability that in a race between 10 friends, Billy is first and Michael is last?

A: Here use basic probability

Q: Sixty percent of clowns aren’t funny.   If you randomly encounter three different clowns, what is…

A: Multiplication rule for independent events:If two events A and B are independent then the…

Q: n a group of 100 students, 80 study Physics, 90 study Math and 5 study none of the subjects. What…

A:

Q: The US population is 13% African American.  If you were to take a SRS of 500 Americans, what is the…

A: It is given that the sample size n is 500 and p hat = 0.13.

Q: A fair dice is rolled four times.  What is the probability of obtaining a 3,2,3 and 3 in that order?

A: For any event A and the sample space S, the probability can be found as,

Q: This problem involves students who have taken Calculus in high school. Assume that 35 percent of…

A: P(A/B) is the probability of event A when event B has already occurred.