Statistics question and answers for December 11, 2023
- Q 11 Independent In 2015 the Report on the UC Berkeley Faculty Salary Equity Study shows that 87 of the university s 222 assistant professors were women along with 137 of...
- Q 3 1 Photo and Video Sharing Photos and videos have become an important part of the online social experience with more than half of Internet users post ing photos or...
- Q 3 9 At the Gym Suppose that 8 of adults belong to health clubs and 45 of these health club members go to the club at least twice a week...
- Q 3 3 Older College Students Government data show that 8 of adults are full time college students and that 25 of adults are aged 55 or older Nonetheless we can...
- Q 3 53 Lactose intolerance Lactose intolerance causes diffi culty digesting dairy products that contain lactose milk sugar It is particularly common among people of African and Asian ancestry In the...
- Q 29 Universal blood donors People with type O negative blood are referred to as universal donors although if you give type O negative blood to any patient you run the...
- Q 8 15 False Negative Rate In a diagnostic test for a particular disease the condi tional probability that a person has the disease given that the test is negative is...
- Q n 200 p 375 a Find the Mean Standard Deviation P x 22 b Assuming Poisson distribution Mean 40 What is the probability x 3 6
- Q 1 Billed customers for fees earned 57 620 2 Purchased supplies on account 2 480 3 Received cash from customers on account 54 160 4 Paid creditors on account 1...
- Q Determine the probability of the given complementary event What is the probability that a 59 free throw shooter will miss her next free throw The probability that a 59 freethrow...
- Q Assume that 700 births are randomly selected and 360 of the births are girls Use subjective judgment to describe the number of girls as significantly high significantly low or neither...
- Q randomly selecting adults let M denote the event of randomly selecting a male and let B denote the event of randomly selecting someone with blue eyes What does P MIB...
- Q Problem 3 Exponential distribution example A tech support center averages a new call every 1 2 minutes In the probability distribution below the x axis indicates the number of minutes...
- Q MAKE SURE YOU USE CORRECT NOTATIONS 1 4 0 5 1 5 2 Consider the following sample data set X 22 23 24 25 26 f early systematically and understandably...
- Q 2 6 24 Consider the following population data set X 16 22 2329 30 36 37 43 f 20 28 26 21 Find the mean by extending the table above...
- Q IQ scores for the general adult population form a nearly normal distribution with mean 100 pts and standard deviation 15 pts Verify that the 68 95 99 7 rule works...
- Q Problem 4 Normal distribution example Weights of German Shepherds form a nearly normal distribution with a center of 80 The distribution of weights is graphed below Note Have you noticed...
- Q A small college tracks the ages of students who seek out a student advisor during the second week of the fall term The histogram below shows the percent of students...
- Q Assume that there is a 7 rate of disk drive failure in a year a If all your computer data is stored on a hard disk drive with a copy...
- Q When testing for current in a cable with ten color coded wires the author used a mete to test five wires at a time How many different tests are required...
- Q Choose the appropriate scatterplot for the points in the table X 0 1 1 2 2 3 4 4 8 5 4 3 2 T y 1 1 5 1...
- Q 10 8 6 4 Linear function Quadratic Function None of these Exponential Function 14 12 ON 10 8 16 4 2 2 40 16 ob 8 10 0 X 8...
- Q Write an equation in the form y mx b for the average gas mileage y miles per gallon of a car driven at a speed of x mph miles per...
- Q Mean 72 standard deviation 19 a What is the probability that student 53 b What is the probability that student 37 c What is the probability that student between 25...
- Q A sign on the pumps at a gas station encourages customers to have their oil checked and claims that one out of 7 cars needs to have oil added If...
- Q For the data given below answer parts a through f 17 15 14 119 117 129 OA 30 X y 20 99 150 001 0 N OB 30 10 139...
- Q Suppose the number of cars in a household has a binomial distribution with parameters n 23 and p 75 Find the probability of a household having a 9 or 13...
- Q A rock concert producer has scheduled an outdoor concert The producer estimates the attendance will depend on the weather according to the following table Weather Attendance Probability wet cold 3000...
- Q Use the ogive to approximate a the number in the sample b the location of the greatest increase in frequency Male Beagles Cumulative frequency 55 50 45 40 35 30...
- Q In the United States voters who are neither Democrat nor Republican are called Independent It is believed that 13 of voters are Independent A survey asked 38 people to identify...
- Q Sam is applying for a single year life insurance policy worth 45 400 00 If the actuarial tables determine that she will survive the next year with probability 0 991...
- Q Determine whether the following are valid probability models or not Type VALID if it is valid or type INVALID if it is not a Event el ez e3 e4 Probability...
- Q Find the expected value for the random variable E X 0 X 2 P X 0 23 4 5 7 0 19 0 1 0 48
- Q A firm has classified its customers in two ways according to whether the account is overdue and whether the account is new less than 12 months or old An analysis...
- Q Suppose that A and B are two events for which P A 0 21 P B 0 84 and P A and B 0 26 Find P AB P A...
- Q Suppose that A and B are two independent events for which P A 0 26 and P B 0 84 Find each of the following A P A B B...
- Q High Temperatures F Class 15 25 Frequency f 17 15 25 26 36 37 47 48 58 59 69 70 80 81 91 26 36 41 17 41 66 67...
- Q 2 Diego is collecting dimes and nickels in a jar He has collected 22 25 so far The relationship between the numbers of dimes and nickels and the amount of...
- Q Identify all true statements about the correlation coefficient r The value of r ranges from negative one to positive one When the data points in a scatter plot fall closely...
- Q Tax deferred annuities pay no taxes on the income placed into the account but then pay taxes on all the money when it is withdrawn Nondeferred plans pay taxes on...
- Q If you are going to buy a new copier for your small business that costs 12 000 are you better off paying cash for it or making five yearly payments...
- Q 1 On January 1 Boston Enterprises issues bonds that have a 2 100 000 par value mature in 20 years and pay 7 interest semiannually on June 30 and December...
- Q 1 Excerpts from Dowling Company s December 31 2024 and 2023 financial statements and key ratios are presented are in millions 00 34 52 Accounts receivable net Net sales Cost...
- Q A quick quiz consists of 4 multiple choice problems each of which has 4 answers only one of which is correct If you make random guesses on all 4 problems...
- Q 83 Compute the probabilities a Plyou will get a chicken breast b Plyou will get a 17 oz chicken breast c P you will get a chicken breast or you...
- Q There are 15 958 866 adults in a region If a polling organization randomly selects 1235 adults without replacement are the selections independent or dependent If the selections are dependent...
- Q Complete the following statement P A or B indicates Choose the correct answer below O A the probability that A and B both occur in the same trial OB the...
- Q ASKHIS approach and include short explanations in each step Mssy Question 1 3 pts The breakdown of U S cities having a population of at least 10 000 persons has...
- Q 2 In a study of drug inducted anaphylaxis among patients taking rocuronium bromide as part of their anesthesia Laake and Rottingen A 7 found that the occurrence of anaphylaxis followed...
- Q When randomly selecting adults let M denote the event of randomly selecting a male and let B denote the event of randomly selecting someone with blue eyes W does P...
- Q Fill in the blank The classical approach to probability requires that the outcomes are The classical approach to probability requires that the outcomes are
- Q he sample space listing the eight simple events that are possible when a couple has three children is bbb bbg bgb bgg gbb gbg ggb ggg After identifying the ample...
- Q Question 3 4 pts gardening According to the hit counter that records daily visitors to her site the numbers of visits during Erika operates a website devoted to providing information...
- Q for a procedure consists of all possible simple events or all outcomes that cannot be broken down any further for a procedure consists of all possible simple events or all...
- Q It is impossible to get 5 aces when selecting cards from a shuffled deck Express the indicated degree of likelihood as a probability value between 0 and 1 inclu The...
- Q This question 2 point s possible A student study of the effects of caffeine asked volunteers to take a memory test 2 hours after drinking soda Some drank caffeine free...
- Q Use the range rule of thumb to identify the values that are significantly low the values that are signficantly high and the values that are neither significantly low nor significantly...
- Q A data set lists weights lb of plastic discarded by households The highest weight is 5 62 lb the of the weights is s 1 761 lb a What is...
- Q Using the accompanying table of data blood platelet counts of women have a bell shaped distribution with a mean of 255 2 and a standard deviation of 65 5 All...
- Q Listed below are prices in dollars for one night at different hotels in a certain region Find the range variance and standard deviation for the given sample data Include appropriate...
- Q 01 O 1 5 Question 3 If the distribution is skewed right skewed to the right then the mean is median less than O equal to greater than the
- Q Suppose that a random variable Y follows a Poisson distribution with 1 Find the P Y 07 O 0 37 0 1 0 015 O2 72
- Q O Skewed left O Symmetric Skewed right Uniform 8 9 5 7 4 58 000111222344566788 6789
- Q A student study of the effects of caffeine asked volunteers to take a memory test 2 hours after drinking soda Some drank caffeine free some drank regular and others drank...
- Q Cell phone user Not a cell phone user Total O 30 1000 O 490 500 O 10 500 Speeding violation 30 500 10 20 30 No speeding violation 490 480...
- Q Suppose that three different closely related diseases A1 A2 and A3 occur in 25 15 and 12 of the population Find the probability of disease A2 given B3 using the...
- Q 80 O 86 O 86 5 22 86 5 O 87 Question 6 Consider the following dataset 77 79 80 86 87 87 94 99 Compute the range
- Q B There is no mode 5 50 SO 10 5 10 5 H Find the midrange The midrange is 9 6 inch es Type an integer or a decimal Do...
- Q Suppose that four random variables Y1 Y2 Y3 and Y4 follow a normal distribution with mean 5 and standard deviation 1 That is Y1 N 5 1 Y2 N 5...
- Q Suppose a quiz consist of 3 questions with 2 possible answer choices What is the probability that you get exactly 1 question correct 0 5 O 0 375 O 0...
- Q Of all sports football accounts for the highest incidence of concussion in the United States due to the large number of athletes participating and the nature of the sport While...
- Q O mode PowerOutputs O mean 4000 3800 3600 3400 3200 In the box plot above what is the number at the red arrow O median O trimmed mean
- Q Monthly sales figures for a particular food industry tend to be normally distributed with a mean of 155 thousand dollars and a standard deviation of 45 thousand dollars Compute the...
- Q The company that sells frozen pizza to stores in four markets in the United States Denver Baltimore Dallas and Chicago wants to examine the prices that the stores charge for...
- Q In an attempt to decrease drunk driving police set up vehicle checkpoints during the July 4 evening The police randomly select vehicles to be stopped for informational checks On a...
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