In a survey of consumers age 12 years and older, respondents were asked how many cell phones are in use in their household.  The results of the survey are summarized in the following table: Number of Cell Phones  in the Household Number of Households 0 211 1 288 2 366 3 144 4 or more 89  Answer the following: (Express your answer as fractions, or as decimals rounded to 4 decimal places) a) What is the probability that a randomly chosen household has 2 cell phones in use? b) What is the probability that a randomly chosen household has 4 or more cell phones in use? c) What is the probability that a randomly chosen household has fewer than 4 cell phones in use?

Q: d. What is the probability that four or more of the LED light bulbs are defective? The probability…

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Q: How many patients, on average, can the clinic expect that will not show up? Round your answer to 1…

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Q: Favorite Type of Movie Comedu Action Romance Drama SciFi

A:

Q: On a 6 question multiple-choice test, where each question has 5 answers, what would be the…

A: From the provided information, Number of questions (n) = 6 Each question has 5 answers.

Q: From a pack of playing cards four cards are drawn without replacement. What is the chance that all…

A: We know that  There are 52 card in the deck in which they divided into two color i.e red(26) and…

Q: A multiple choice quiz has 10 questions. Each question has 5 possible answers of which only one is…

A: Given that A multiple choice quiz has 10 questions. Each question has 5 possible answers of which…

Q: Among 70 exposed people. 15 developed disease and 55 remained healthy. What is the odds of illness…

A: Given: developed disease = 15remained healthy = 55Total exposed = 70

Q: Answer all parts please and thank you :)

A: Solution According to guidelines we solve three subpart

Q: An estimator for parameter v is consistent if E(v) is close to v when sample size is increased.…

A: Given If E(v) is close to parameter v, the estimator is consistent.

Q: A student takes a 20-question multiple-choice test with 4 choices for each question. If the student…

A: The sample size n is 20.

Q: A. Find the probability of randomly selecting a student who spent the​ money, given that the student…

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Q: On a 9 question multiple-choice test, where each question has 4 answers, what would be the…

A: Obtain the probability of getting at least one question wrong.   The probability of getting at…

Q: A student takes a 20-question multiple-choice test with 4 choices for each question. If the student…

A: The sample size n is 20.

Q: d. What is the probability that four or more of the LED light bulbs are defective? The probability…

A: We have given thatp = 0.04n = 20X ~Binomial(n, p) X ~ Binomial (20, 0.04)The PMF of the Binomial…

Q: 135 fitness center members were asked if they run and if they lift weights. The results are shown in…

A: We have to find probability  that participant lifts weights

Q: There are eight female board members and twenty-two male board members. a. How many ways are there…

A: Given : No. of female board members (F) = 8 No. of male board members (M) = 22 Total board members…

Q: The type and number of fish caught in the Charleston Harbor in March was recorded for a month. The…

A: From the provided information, The number of fish caught in March: Flounder Red Drum Black…

Q: Two hundred math teachers were given a survey that asked two questions:  1. Do you own a…

A: Let , M=a student owned a motorcycleC =a student owned a…

Q: Give the probability for each of the following totals in the rolling of two dices: 1, 2, 5, 6, 7, 10…

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Q: In a hospital emergency room, 220 patients had strokes over the course of a year, and 100 of these…

A: From the provided information, Sample size (n) = 220 From which 100 patients survived.

Q: On a multiple choice quiz, there are eight questions. Each question has four choices (A, B, C or D).…

A: GivenSample size(n)=8p=14=0.25                          (one correct choice in four…

Q: A jar contains 10 red marbles numbered 1 to 10 and 12 blue marbles numbered 1 to 12. A marble is…

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Q: 2) Choose the correct answer. Sherane rolls a standard, six-sided number cube. What is the…

A: We know that total faces on die is 6  So N= 6  And there are two multiple of 3 on the die i.e. 3 and…

Q: A multiple-choice test contains 25 questions, each with four choices. Assume a student just guesses…

A: Given,n=25p=14=0.25q=1-pq=1-0.25=0.75Let X=A sample of 25 questions the students answered no.of…

Q: What are the chances that there will be more boys than girls in a household with 11 children? 0.2256…

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Q: According to a report in Parade magazine, a nationwide survey conducted by the University of…

A: We have given that Probability (p)  = 0.70  Number of samples(n) = 12 Here we will use binomial…

Q: Marijuana Use in the Last 30 Days Never used, 49.1% Used, but not in the last 30 days, 28.0% Used…

A: From the pie chart,   Percentage Probability Never used 49.10% 0.491 Used, but not in the…

Q: A service station owner believes that equal numbers of customers prefer to buy gasoline on every day…

A: It is needed to test the whether the number of customers who prefers to buy gasoline on each day of…

Q: At Ice Cream Haven, 10 of the last 14 sundaes sold had nuts. What is the experimental probability…

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Q: Possible Number of Females in a Family of Frequency Six 3 4 2 a) Determine the total number of…

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Q: COLOR THEME O ZOOM 13. Kiara is rolling an 1-6 number cube four times. What is the chance that she…

A: We are asked find the probability.

Q: 135 fitness center members were asked if they run and if they lift weights. The results are shown in…

A: Given Information:  Contingency table of 135 fitness center members who were asked if they run and…

Q: A  survey was done to see which platform people prefer the most.    Facebook Instagram Snapchat…

A: Let us take the probability of choosing someone who prefers Instagram as P(A) and the probability of…

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

Q: Describe the sample space that you would use to calculate the probability of the months in a year.

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Q: onsider the data on 1000 births.  Please leave your answers as unsimplified fractions.   Predicted…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: On a roll of a die, what is the probability of landing a. Aneven number? b. An odd number? C. prime…

A: We have given that  Roll a die  Total number of outcomes=6 Sample space=S=(1,2,3,4,5,6) A=Even…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.