Statistics question and answers for December 16, 2023
- Q Suppose a random variable x arises from a binomial experiment If n 14 and p 0 2 find the following probabilities using the binomial formula Round to four decimal places...
- Q A fair coin is flipped 14 times Find the probability that more than 6 of the flips turn up tails 0 662034 0 604736 O0 545104 0 633746 O0 575141
- Q The television show September Road has been successful for many years That show recently had a share of 21 meaning that among the TV sets in use 21 were tuned...
- Q According to the American Red Cross 8 9 of all Connecticut residents have Type B blood A random sample 18 Connecticut residents is taken X the number of CT residents...
- Q According to the American Red Cross 8 1 of all Connecticut residents have Type B blood A random sample of 17 Connecticut residents is taken X the number of CT...
- Q An insurance company prices its Tornado Insurance using the following assumptions In any calendar year there can be at most one tornado In any calendar year the probability of a...
- Q A binomial experiment consists of 17 trials The probability of success on trial 10 is 0 42 What is the probability of success on trial 14 00 3 0 42...
- Q A baseball player has a batting average of 0 175 What is the probability that he has exactly 5 hits in his next 7 at bats Round your answer to...
- Q 6 5 In an effort to link cold environments with hypertension in humans a preliminary experi ment was conducted to investigate the effect of cold on hypertension in rats Two...
- Q 126 Approximately 8 percent of students at a local high school participate in after school sports all four years of high school A group of 60 seniors is randomly chosen...
- Q ble 116 A bridge hand is defined as 13 cards selected at random and without replacement from a deck of 52 cards In a standard deck of cards there are...
- Q 106 It has been estimated that only about 30 percent of California residents have adequate earthquake supplies Suppose we are interested in the number of California residents we must survey...
- Q d How many shotokan karate students do we expect to be in that first demonstration 113 In one of its spring catalogs a retailer advertised footwear on 29 of its...
- Q 4 6 Poisson 117 The switchboard in a Minneapolis law office gets an average of 5 5 incoming phone calls during the noon hour on Mondays Experience shows that the...
- Q 104 A consumer looking to buy a used red sports car will call dealerships until she finds a dealership that carries the car She estimates the probability that any independent...
- Q f Find the probability that at most three on the committee are not 115 Suppose that nine Massachusetts athletes are scheduled to appear at a charity benefit The nine are...
- Q able 93 A student takes a 32 question multiple choice exam but did not study and randomly guesses each answer Each question has three possible choices for the answer Find...
- Q 1 000 babies in an intensive care nursery Suppose that 1 000 babies from healthy baby nurseries were randomly surveyed Find the probability that exactly two babies were born deaf...
- Q ble Use the following information to answer the next two exercises The average number of times per week that Mrs Plum s cats wake her up at night because they...
- Q 118 The maternity ward at a hospital in the Philippines is one of the busiest in the world with an average of 60 births per day Let X the number...
- Q 109 Ellen has music practice three days a week She practices for all of the three days 85 percent of the time two days 8 percent of the time one...
- Q orten rent more than one DVD at a time The probability distribution for DVD rentals per customer at Video to Go is given in the following table There is a...
- Q 111 According to a recent poll 75 percent of millennials people born between 1981 and 1995 have a profile on a social networking site Let X the number of millennials...
- Q Use the following information to answer the next three exercises The probability that a local hockey team will win any given game is 0 3694 based on a 13 year...
- Q 100 It has been estimated that only about 30 percent of California residents have adequate earthquake supplies Suppose you randomly survey 11 California residents We are interested in the number...
- Q 79 A friend offers you the following deal For a 10 fee you may pick an envelope from a box containing 100 seemingly identical envelopes However each envelope contains a...
- Q 76 Suppose that 20 000 married adults in the United States were randomly surveyed as to the number of children they have The results are compiled and are used as...
- Q 1 Name 2 Liam Henry 3 4 Ellie 5 Chloe 6 Daniel 7 Luke 8 Sophie 9 Joseph 10 Lewis 11 William 12 Charlotte 13 Holly 14 Adam 15 Amy...
- Q a About what percent of the cheese last between 10 and 15 days P 10 x 15 21 10 15 5 1 6 3 P 10 x415 0 0548 0...
- Q Textbook prices have a seasonal structure on Ebay At the end of a term the supply of used books outstrips demand and the price is lower Near the start of...
- Q The Blacktop Speedway is a supplier of automotive parts Included in stock are 12 speedometers that are correctly calibrated and two that are not Three speedometers are randomly selected without...
- Q Keke s Kookies https kekekookies com sells mini cookies in packs of 5 and has determined a probability distribution for the number of cookies that they sell in a given...
- Q 2 0 1 2 3 P x 0 2 0 05 0 3 0 45 a Find the expected value of the probability distribution Round to two decimal places b...
- Q Find the mean of the following probability distribution Round your answer to one decimal X P x 0 0 0947 1 0 0965 2 0 1102 3 0 4188 4...
- Q The following table represents the probability of the number of cars owned by a college student Give your answer to at least 3 decimal places X 0 1 2 3...
- Q K The accompanying data represent the monthly rate of return of a certain company s common stock for the past few years Complete parts a and b below Click the...
- Q In Marissa s calculus course attendance counts for 20 of the grade quizzes count for 15 of the grade exams count for 45 of the grade and the final exam...
- Q Caleb Martin Cody Zeller Dewayne Dedmon Dru Smith Duncan Robinson Gabe Vincent Haywood Highsmith Jamal Cain Jamaree Bouyea Jimmy Butler Kevin Love Kyle Lowry Max Strus Nikola Jovic Omer Yurtseven...
- Q You purchase a car for 30 000 using a five year car loan The loan has an APR of 6 What is your monthly car payment Construct an amortization table...
- Q The probability that a randomly selected 4 year old male garter snake will live to be 5 years old is 0 95842 a What is the probability that two randomly...
- Q Suppose you just purchased a digital music player and have put 11 tracks on it After listening to them you decide that you like 2 of the songs With the...
- Q Suppose that events E and F are independent P E 0 6 and P F 0 9 What is the P E and F The probability P E and F...
- Q Suppose the data below represent in thousands the type of health insurance coverage of people by age Determine P 18 years old and P 18 years old no health insurance...
- Q Suppose you just received a shipment of eight televisions Four of the televisions are defective If two televisions are andomly selected compute the probability that both televisions work What is...
- Q Suppose that E and F are two events and that P E 0 6 and P FIE 0 2 What is P E and F P E and F
- Q Due to a manufacturing error six cans of regular soda were accidentally filled with diet soda and placed into a 18 pack Suppose that two cans are randomly selected from...
- Q A family has six children If this family has exactly three boys how many different birth and gender order are possible There are different birth and gender orders possible Type...
- Q A player is dealt 5 cards from a standard 52 card deck Determine the probability of being dealt two of a kind such as two aces or two kings by...
- Q 6 1 Refer to the oil spill case study a What are the populations of interest b What are some factors other than flora density that may indicate that the...
- Q O 9 In its monthly report the local animal shelter states that it currently has 24 dogs and 18 cats available for adoption Eight of the dogs and 6 of...
- Q Suppose that you are buying a car for 60 000 You saved 20 000 for a down payment The dealer is offering you two incentives Incentive A is a 5000...
- Q A poll reported that 64 of adults were satisfied with the job the major airlines were doing Suppose 15 adults are selected at random and the number who are satisfied...
- Q Calculate the future value Round your answer to two decimal places P 27 000 r 7 compounded monthly t 4 years
- Q Find the value of the combination 12 C6
- Q Find the value of the factorial 7
- Q 14 Use the following information to calculate MSE Round your answer to the nearest thousandths x 5 5 X 4 4 X3 6 2 n 14 n 14 n3 16...
- Q 7 What is the slope of the least squares regression line for the data 1 2 3 4 5 6 7 8 8 6 Round your answer to the nearest...
- Q Question 5 of 14 5 What is the second coordinate of the point at which the line y 0 5x 1 5 crosses the y axis Answer Previous Answer 1...
- Q 8 How many units does the point 2 4 vertically deviate above the line y 2x 2 r MyHer Previous Answer Return to overview
- Q Question 4 of 14 4 What is the slope of the line passing through the points 1 2 and 4 6 Answer Previous Answer 0 8
- Q 6 19 Student study times A class survey in a large class for first year college students asked About how many hours do you study during a typical week The...
- Q 9 Sample Size and Margin of Error Example 16 1 page 377 described NHANES survey data on the body mass index BMI of 654 young women The mean BMI in...
- Q lo plain the confidence interval for mean ideal weight de scribed in the previous exercise The student answers We can be 95 confident that future samples of adult American women...
- Q 6 5 Find a Critical Value The critical value z for confidence level 75 is not in Table C Use software or Table A of standard Normal probabilities to find...
- Q companying graph is a histogram of measured mid upper arm circumferences of 297 particular adults ick the icon to view the histogram stogram is point s possible symmetric The histogram...
- Q If X has a binomial distribution with 20 trials and a mean of six then the success probability p is OA 0 30 OB 0 50 OC 0 75 O...
- Q Opinion polls find that 20 of American adults claim that they don t get enough sleep Suppose you take a random sample of 200 American adults and count the number...
- Q An SRS of 25 recent birth records at the local hospital was selected In the sample the average birth weight was x 119 6 ounces Suppose the standard deviation is...
- Q The accompanying graph is a histogram of measured mid upper arm circumferences of 297 particular adults Click the icon to view the histogram The histogram is symmetric The histogram is
- Q A small class has 10 students Seven of the students are male and three are female You write the name of each student on a small card The cards are...
- Q The following table gives the sex and age group of college students at a midwestern university Female Male Total 89 5 668 1 904 1 660 9 321 15 to...
- Q Event A occurs with probability 0 1 Event B occurs with probability 0 6 If A and B are independent then O A P A and B 0 70 B...
- Q The high temperature X in degrees Fahrenheit on January days in Columbus Ohio varies according to the Normal distribution with mean 21 and standard deviation 10 The value of P...
- Q A randomly selected sample of 100 horse owners found that 72 of them feed two flakes of grass hay in the morning and one flake of alfalfa plus one flake...
- Q Horses are housed in pasture pipe pens or barn stalls at a local horse barn Let X the number of horses housed in barn stalls Then X is O A...
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