The table below describes the exercise habits of a group of people suffering from high blood pressure. If one of the 980 subjects is randomly selected, find the probability that the person selected is female given that they exercise occasionally. No Occasional Regular exercise exercise exercise Total Men 361 87 66 514 Women 334 60 72 466 Total 695 147 138 980 Solution: P= 60/147=0.4082 O 0.408 0.061 O 0.15 O 0.129

Q: In an identical and independent experiment, suppose the probability of getting a "success"is 0.8.…

A: It is given that, In an identical and independent experiment,  the probability of success is p= 0.8…

Q: Q1/100 college students were surveyed and asked how many hours a week the spent studying the results…

A: Given that                   We have to find the probability that a student spent between 5 and 10…

Q: Q1/ 100 college students were surveyed and asked how many hours a week the spent studying the…

A: Data given   Less than 5 5 to 10 more than 10 Total Male  11 22 16 49 Female 13 24 14 51…

Q: At a drug rehab center 41% experience depression and 25% experience weight gain. 14% experience…

A: Given Information: 41% experience depression.  25% experience weight gain 14% experience both. Let D…

Q: Power companies severely trim trees growing near their lines to avoid power failures due to falling…

A: Given that  n=250 , p=20%=0.20 , q=1-p=1-0.20=0.80 Mean=μ(p)=0.20 Standard deviation=σ(p)…

Q: If one student is chosen at random, Find the probability that the student was male AND got a "C".

A: The given table shows the grades and gender of the group of students.

Q: A certain affects virus 0.1% of the population. A test used to detect the virus in a person is…

A: Solution

Q: (b) From the distribution you found in part (a), what can you say about the distribution of X? The…

A: Given: X 0 1 2 3 4 5 6 7 P(X=x) 0.2791 0.3907 0.2344 0.0781 0.0156 0.0019 0.0001 0.00000357

Q: A police officer uses a breathalyzer to test the blood alcohol content of drivers suspected of a…

A: We have the null and alternative hypothesis as follows H0 : The driver is not drunk.   Ha : The…

Q: The mean percent of childhood asthma in 43 cities is 2.31 %. A random sample of 30 of these cities…

A: Sample size(n)=30mean()=2.31%Standard deviation()=1.25%

Q: A drug using to treat a particular disease shows 20% failure rate. If we select a sample of 8…

A:

Q: A marketing firm randomly visited several gasoline stations to collect a sample of their gasoline.…

A:

Q: A group of people studied the relationship of smoking habits and hypertension. The data below have…

A: The number of individuals is experiencing non-hypertension and they are non-smokers is 50 and the…

Q: According to studies, 3% of all patients who undergo a laser surgery (i.e. LASIK) to correct their…

A: Given information: A random sample of n = 100000 LASIK patients is considered. The probability of…

Q: opose a computer chip manufacturer finds that 20% of the chips produced during the velopment phase…

A:

Q: Bricks manufactured in a kiln are weighed every day to check them against the design weight. The…

A: Let us denote X=the number of bricks weighing less than the design weight n=sample size= 12…

Q: A test was given to a group of students. The grades and gender are summarized below A В C Total Male…

A: A B C Total Male 15 2 16 33 Female 9 5 18 32 Total 24 7 34 65

Q: A patient has completed her medical checkup and is waiting to see the report. The report shows that…

A: Let A and B are two events then the baye's theorem has the formula,

Q: In a certain battery manufacturing plant, three factories, F1, F2, and F3, make 35%, 47%, and 18%,…

A: Given:

Q: A test was given to a group of students. The grades and gender are summarized below A В C Total Male…

A:

Q: 1. Each sample of water has a 10% chance of containing a particular organic pollutant. Assume that…

A: Given: n=18 and p=0.1 Use binomial probability asPX=x=Cxnpx1-pn-x                      ;x≤n

Q: An experiment consists of rolling a weighted die. The probability of rolling each number is:…

A: Given information: The probability of rolling each number is: P[1] = 0.15, P[2] = 0.2, P[3] = 0.15,…

Q: A survey asked subjects whether they are a member of anvironmental group and whether they would be…

A: Given : A survey asked subjects whether they are a member of an environmental group and whether they…

Q: MATH 115_Midterm Quiz No. 2 (Set Y. 1. The letters in the word SQUARE are to be arranged. How many…

A:

Q: The proportion of individuals that regularly smoke in a population is known to be 0.25. What is the…

A: Given information: p=0.25 Sample size, n=100

Q: Scoring a hole-in-one is the greatest shot a golfer can make. Once 55 professional golfers each made…

A: Given, Probability of success=p=1/2856 n=55

Q: Assume that 35.4% of people have sleepwalked. Assume that in a random sample of 1490 ​adults, 565…

A: Given p=0.334 n=1490

Q: . 20 people will arrive at a 15-minute period. b. A maximum of 175 people will arrive at a 2-hour…

A: During peak hours, the arrival of customers at a fast food restaurant is random with an average rate…

Q: L An elevator sign says that it can hold 30 people or 4800 lb. Suppose that the weight of a randomly…

A: The number of people is n=30 , the mean for the randomly selected variable is μ=150 lb and the…

Q: A survey showed that 80% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…

A: n=16P=0.8

Q: In the experiment of tossing a coin 11 times. The probability of getting three heads at the most…

A:

Q: Bill Alther is a zoologist who studies Anna's hummingbird (Calypteanna). A random sample of nine of…

A: (a). Compute the sample mean: The data represents the observed weights in grams for a random sample…

Q: Suppose that six cups of yogurt are selected at random. What is the probability that at least three…

A:

Q: A researcher wants to find the factors affecting the probability that a person suffers from heart…

A: The given logit regression isSample size is

Q: Alex makes mistakes in a with an average of 1.2 mistakes per class. In a given class, what is the…

A: Given that  Average =λ=1.2 Here we use poisson probability distribution.  P(X=x) =e-λ*λx/x!       X=…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.