1. Consider a random variable representing the following quantities. Classify each as discrete or continuous: a. Number of coins in your pocket b. Volume of water in a 100-L tank c. Weight of a baby d. Number of people in your house in a given hour e. A person's age
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- Determine whether the value is a discrete random variable, continuous random variable, or not a random variable. a. The time required to download a file from the Internet b. The height of a randomly selected giraffe c. The eye color of people on commercial aircraft flights d. The number of free-throw attempts before the first shot is made e. The amount of rain in City B during April f. The number of hits to a website in a day a. Is the time required to download a file from the Internet a discrete random variable, a continuous random variable, or not a random variable? A. It is a discrete random variable. B. It is a continuous random variable. C. It is not a random variable. b. Is the height of a randomly selected giraffe a discrete random variable, a continuous random variable, or not a random variable? A. It is a discrete random variable. B. It is a continuous random variable. C. It is not a random variable c. Is the eye color of people on commercial aircraft flights a discrete random…1. Identify if the following scenarios describe a discrete or continuous random variable. Explain your choice. (a) X = The number of persons in an emergency room 181screte (b) W = The weights of delivery trucks at a supermarket. Lconinaas (c) H= The areas of houses being built in a new subdivision. 2. Faith is a 95% free throw shooter. At practice, each player shoots 20 free throws. L X the number of free throws Faith makes out of 20 shots. (a) Explain why X is a binomial random variable. (b) Calculate the mean of X. (c) Calculate the standard deviation of X. (d) Use the binomial probability formula to find P(X = 19). Interpret this value in context. (e) Her coach says that he will let the team out of practice early if Faith makes 18 or me free throws. What is the probability that practice ends early? Show your work. 2017 BFW Publishers Starnes/Tabor Statistics and Probability with Applications 3/eA certain virus affects 0.7% of the population. A test used to detect the virus in a person is positive 88% of the time if the person has the virus (true positive) and 13% of the time if the person does not have the virus (false positive) Fill out the remainder of the following table and use it to answer the two questions below based on a total sample of 100,000 people. a. Find the probability that a person has the virus given that they have tested positive. Round your answer to the nearest hundredth of a percent and do not include a percent sign. b. Find the probability that a person does not have the virus given that they test negative. Round your answer to the nearest hundredth of a percent and do not include a percent sign.
- Determine whether the value is a discrete random variable, continuous random variable, or not a random variable. a. The time required to download a file from the Internet b. The number of fish caught during a fishing tournament c. The response to the survey question "Did you smoke in the last week?" d. The distance a baseball travels in the air after being hit e. The number of hits to a website in a day f. The time it takes for a light bulb to burn out a. Is the time required to download a file from the Internet a discrete random variable, a continuous random variable, or not a random variable? C O A. It is a continuous random variable. O B. It is a discrete random variable. O C. It is not a random variable. b. Is the number of fish caught during a fishing tournament discrete random variable, a continuous random variable, or not a random variable? O A. It is a continuous random variable. O B. It is a discrete random variable. O C. It is not a random variable c. Is the response to the…b. If 26 different women are randomly selected, find the probability that their mean weight is between150 lb and 221 lb.The probability is approximately enter your response here. (Round to four decimal places as needed.)Determine whether each random variable is discrete or continuous. Answer only DISCRETE OR CONTINUOUS.a. The number of boys in a three-child family chosen at random.b. A cup of coffee served at a restaurant's temperature.c. The number of no-shows for every 100 commercial airline reservations.d. The number of automobiles owned by a household chosen at random.e. The average amount spent on electricity by a randomly selected household ineach state during the month of July.
- a. The symbol for the random variable involved in this problem is ? v b. The wording for the random variable in context is as follows: Select an answer c. The symbol for the parameter involved in this problem is ? v d. The wording for the parameter in context is as follows: Select an answerUse the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant Q с A B D Order Accurate 318 271 244 134 Order Not Accurate 32 57 39 13 If one order is selected, find the probability of getting food that is not from Restaurant A. The probability of getting food that is not from Restaurant A is (Round to three decimal places as needed.)Use the results from a survey of a simple random sample of 1001 adults. Among the 1001 respondents, 67% rated 13 themselves as above average drivers. We want to test the claim that of adults rate themselves as above average drivers. Complete parts (a) through (c). 20 a. Identify the actual number of respondents who rated themselves as above average drivers. (Round to the nearest whole number as needed.)
- Determine whether the following value is a continuous random variable, discrete random variable, or not a random variable. a. The number of home runs in a baseball game b. The last book a person in City A read c. The number of textbook authors now eating a meal d. The time it takes for a light bulb to burn out e. The square footage of a poolDetermine whether the value is a discrete random variable, continuous random variable, or not a random variable. a. The number of hits to a website in a day b. The weight of a T-bone steak c. The gender of college students d. The number of statistics students now reading a book e. The number of textbook authors now sitting at a computer f. The number of people in a restaurant that has a capacity of 200 a. Is the number of hits to a website in a day a discrete random variable, a continuous random variable, or not a random variable? O A. It is a continuous random variable. O B. It is a discrete random variable. O C. It is not a random variable Clear all FirN check View an example Get more help - Help me solve this Copyright © 2022 Pearson Education Inc. All rights reserved. I Terms of Use | Privacy Policy I Permissions | Conta 80°F Mostly cloudy ere to search hp. A sample of 200 people was asked their favorite genre of music. Below are the results. Gender Rock Pop Hip-Hop Other Male 31 20 37 12 Female 17 30 19 34 If one of those people is randomly selected, find the probability that the person is a female or their favorite genre of music is Hip-hop. Round to three decimal places as needed. If one of those people is random selected, find the probability that the person’s favorite genre of music is Pop, given that the person is a male. Round to three decimal places as needed.