Alex is a physical therapist who specialises in leg injuries. His patients differ in age and type of injury. Knee pain Ankle pain 0-12 years old 2 2 13-19 years old 4 3 What is the probability that a randomly selected patient is 13-19 years old given that the patient suffers from knee pain?

Q: Three percent of the students at Lincoln High are in orchestra, 5% are in band, and 1% are in both.…

A: It is given that P( orchestra ) = 3% = 0.03P( band ) = 5% = 0.05P( orchestra and band ) = 1% = 0.01

Q: Suppose that 54% of people own dogs. If you pick two people at random, what is the probability that…

A: Given, 54% of the people own dog.That is

Q: according to a survey, 34.8% of babies born in the US were still being breastfed at 6 months of age.…

A:

Q: Suppose 1% of woman develop breast cancer. Physicians report that a mammogram accurately classifies…

A: This problem can be solved using Bayes probability theorem. According to this theorem, if A nd B are…

Q: Approximately 9% of people are left-handed. If two people are selected at random, what is the…

A:

Q: A zoo has a collection of 400 flamingos. 180 of these flamingos are red. One day, a fence blew down…

A: Given : A zoo has a collection of 400 flamingos. 180 of these flamingos are red.

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

A: Deck consists of 52 cards. n(S)=52 Let D be event that card is diamond. n(D)=13 Let H be event that…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A:

Q: According to a recent survey approximately 68% of students at this campus are women. A group of 20…

A: Solution: Let X be the number of students are women and n be the sample of students. From the given…

Q: new drug cures 65% of the patients who take it. If it is given to 14 patients, what is the…

A: We have to find out answer of given question....

Q: In a certain town 90% of the people believe in global warming; 10% of the people do not. What is the…

A: The probability mass function of binomial distribution is given below:

Q: Charlie fills out six applications. What is the probability that none of the companies calls her for…

A: here given 28% chance of getting job interview if she fills out an application p =.28 q = 1-p = 0.72…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A: Let X represent random variable   n=5 p=0.08   X~ binomial (5, 0.08)

Q: Six percent of American adults are considered millionaires. If 100 randomly selected adults are…

A: Here it is given that 6% of American adults are millionaire. We need to find the probability of 7 or…

Q: The probability that a can of paint contains contamination is 3.23% and the probability of a mixing…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule states that:

Q: You have 10 children in preschool class. The probability of getting sick from a virus they have been…

A:

Q: If 15% of students like tennis and I expect 500 new students on campus what is the probability that…

A: Probability that students like tennis, p=15% = 0.15 q=1-p= 1-0.15= 0.85 Sample size n=500…

Q: A candy dish contains nine brown and four red M&Ms. A child selects four M&Ms without checking the…

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Q: Airlines report that 45% of its flights are on time.  In a random sample of 80 flights, what is the…

A:

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

A:

Q: Researchers suggest that 9.5% of females in Scotland have red hair. Approximately 10% of Scottish…

A: Conditional probability formula : P(A | B) = P(A n B) /P(B)

Q: Approximately 30% of obese patients develop diabetes. If a physician sees 10 patients who are obese,…

A:

Q: A rare disease affects 1 out of 10,000 people. There is a new medical test for the disease. If…

A: Given Data:   Disease No disease Total Test Positive 0.9999 0.9999 1.9998 Test Negative…

Q: Your IPOD contains 20% rap, 10% R&B, 40% rock, and 30% classical music. If you randomly select a…

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

Q: If the probability of being hit by lightning is 1 in 1,000,000, what is the probability of not…

A: Given that , P (being hit by lightning) = 1/1000000 =0.000001

Q: It has been estimated that 21% of Americans are smokers. If four American adults are chosen at…

A: Given that, proportion, p= 21%  p= 0.21 So q= 1-p= 1-0.21 = 0.79 And sample size is n= 4 So X~…

Q: Long-term history has shown that 75% of all elected offices in an urban district have been won by…

A: Let x follows binomial distribution with parameters n = 8 and p = 0.75   The pdf of binomial…

Q: In a recent​ survey, it was found that the median income of families in country A was ​$58,000. What…

A: In a recent​ survey, it was found that the median income of families in country A was ​$58,000.

Q: A disease affects 1 out of every 500 people. If you have the disease, you test positive 90% of the…

A: P( a person affected by the disease) = P(D) = 0.002 P( a person not affected by the disease) = P(ND)…

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: A flu test shows that about 31% of all patients visited the hospital. Suppose that 90 patients…

A:

Q: Approximately 18% of shoppers used cellphones to look for deals. THe probability of making a…

A: From the given information ,P ( cellphones) = 18% = 0.180.45

Q: A candy company claims that 31% of candies are orange. We randomly sample 100 candies. We wish to…

A: It is given that  Population proportion, p = 31% = 0.31 Sample proportion, p^ = 29% = 0.29 Sample…