A random sample of 250 adults was taken, and they were asked whether they prefer watching sports or opera on television. The following table gives the two-way classification of these adults. Prefer watching sports Prefer watching opera Total Male 96 24 Female 45 85 Total a/ Fill out the column “Total” and the row “Total” If one adult is selected at random from this group, b. find the probability that this adult prefers watching opera c. find the probability that this adult is a female d. find the probability that this adult is a female and prefers watching sports e. find the probability that this adult prefers watching sports, given that the adult is a female

Q: Individuals at risk for colon cancer are advised to have a colonoscopy beginning at age 50. The…

A: Given that: Total number of patients = 250   Colon cancer: yes Colon cancer: no Total…

Q: Assume that when adults with smartphones are randomly​ selected, 59% use them in meetings or…

A: Given, p=0.59 and n=11 Let X be the random number which denotes the number of adults using…

Q: Assume that when adults with smartphones are randomly​ selected, 43​% use them in meetings or…

A: given data,p(use smart phone in meeting or classes) = 0.43p = 0.43q = 1 - p = 1 - 0.43    = 0.57n =…

Q: Suppose that about 85% of graduating students attend their graduation. A group of 21 graduating…

A:

Q: Prob 3

A: Detailed explanation of the importance of appearance in job applications:First Impressions: When…

Q: Determine the probability of drawing 5 black cards in a row (with replacement) from a standard deck.

A:

Q: In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age…

A: The data shows the number of deaths of a female from cardiovascular disease for different age…

Q: B- A magazine reported that 20% of American drivers read the newspaper while they driving. If 15…

A: Given data Probability of reading newspaper while driving p = 0.2 No of drivers selected n = 15 Let…

Q: randomly drawn from a deck of 52 cards with replacements 3456 times. Find the mean of the number of…

A: The probability of drawing heart from deck in one trail will be: p= Probability of hearts = 1352…

Q: Suppose in a study to evaluate the efficacy of new study to teach slow learners. 22 slow learners…

A: From the provided information, Sample size (n1) = 10 and n2 = 12 Level of significance (α) = 0.05

Q: How many ways are there to rearrange the letters in the word STATISTICS?

A: We have given the word STATISTICS We have to find a number of ways are there to rearrange the…

Q: You need to select a simple random sample of three from nine friends who will participate in a…

A: Random number table:Here, there are 9 friends and has been assigned a number from 1 to 9. A simple…

Q: A bag contains 9 metal balls, 10 hollow balls, 4 glass balls and 18 plastic balls. What is the…

A:

Q: Consider a political discussion group consisting of 7 Democrats, 5 Republicans, and 2 Independents.…

A: The objective of this question is to find the probability of selecting 3 Democrats and 1 Republican…

Q: If the probability of choosing a red chip from a bucket is 0.4, What is the probability of not…

A: We have the probability of choosing a red chip from a bucket is 0.4

Q: A company manufactures calculators in batches of 64 and there is a 4% rate of defects. Find the…

A: Givensample size(n)=64p=0.04Let "x" be the no.of defects in a batchx~Binomial(n=64 ,…

Q: In a bag filled with 35 pcs. of marbles, 12 are blue, 5 are green, 3 are white, 10 are red and 5…

A: The possible chance of occurrence of an event is calculated using the probability. It is calculated…

Q: Consider a political discussion group consisting of 5 Democrats,10 republicans, and 3 independents.…

A: Consider a political discussion group consisting of 5 Democrats,10 republicans, and 3 independents.…

Q: Consider dealing a five-card hand from a standard 52-card deck of cards. Compute the probability of…

A: We want to find the probability

Q: In a  lab ,the coronavirus  vaccine causes negative effects  in 3 out of every 100 patients . 5…

A: Given,n=5p=0.03X~Binomial(n=5,p=0.03)P(X=x)=cxn px(1-p)n-x ;X=0,1,.....n

Q: A box of 50 diodes contains 10 defective diodes. Suppose 10 diodes are selected at random and…

A: There are 50 diodes and 10 are defective in them and 10 are selected for inspection, let X be the…

Q: A weighted coin has a 62% chance of landing on heads.  You decide to flip the coin 3 times.…

A: Given: n = 3 Probability of landing head p = 0.62 Probability of landing tell q = 1-0.62 q = 0.38…

Q: A school has 650 students. Each student studies one of Analytical Chemistry or Health Care or…

A: We have to find no of sample selected from each subject...

Q: Samir has a big bag of wooden blocks in assorted shapes. He randomly picks a block from the bag,…

A: Step 1:Step 2: Step 3: Step 4:

Q: Find the mean and variance of Set S (-8, 4, 0, 10, 16, 20)

A:

Q: One lot contains 2 boxes with organic tomatoes and 8 boxes with non-organic tomatoes; the boxes lost…

A: Number of organic tomato boxes are 2. Number of inorganic tomato boxes are 8.

Q: Of the 33 plays attributed to a playwright, 10 are comedies, 11 are tragedies, and 12 are histories.…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 47​% use them in meetings or…

A: The binomial distribution function is: PX=x=Cxnpx1-pn-xwhere,n=number of trials,x=number of success,…

Q: A group of students consisting of 20 males and 20 females were selected to participate in a research…

A: The number of male students is 20 and the number of female students is 20.

Q: A survey showed that 33% of human resource professionals are at companies that rejected job…

A: Given: Probability that human resource professionals reject the candidates, p=0.33 Sample size, n=25

Q: Suppose that a box contains 5 RED blocks, 4 BLUE blocks, and 3 GREEN blocks.  Suppose that 4 blocks…

A: Let X denote the number of red blocks in a box of 4 blocks drawn from a bag containing 5 red blocks,…

Q: The least-squares regression equation y = 50+ 0.1x gives the yield in bushels per acre of corn when…

A: Given data The least squares regression equation y=50+0.1x gives the yield in bushels per acre of…

Q: A landscaper mows 25 lawns per day on sunny days, 15 lawns per day on cloudy days, and no lawns if…

A:

Q: According to the historical data, the life expectancy in Argentina is equal to the life expectancy…

A:

Q: How to find the variance of a set of numbers

A: Variance:- The amount of data values spread from the mean is known as variance.

Q: Use the given statement to represent a claim. Write its complement and state which is Ho and which…

A: Given  μ≤285

Q: Assume that when adults with smartphones are randomly​ selected, 53​% use them in meetings or…

A: given data P(use smartphone in meeting or class) = p = 0.53sample size (n) = 5x = no. of adults use…

Q: A common lab test during a medical exam is a blood count. The two main aspects are counting the…

A:

Q: Suppose 20% of business majors major in finance. You take a random sample of 3 business majors. What…

A: We have given that Probability (p) = 20% = 0.20 Number of trials (n) = 3 Let x = number of success…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.