5 points (c) Find the probability that the student is a woman or received an A. 3 points (d) Find the probability that the student did not receive an A. 11) 6 points Find the population variance and standard deviation for the following population. Round the answers to at least one decimal place. 18 5 19 25 Do not use special features on TI- 84 calculator. Use formulas 62 - E ( x - 1) 2 N 0 =V62 And show all your steps for the creditChapter 2 7) 8 points Video game console use: A market research company estimated the numbers of people in various gender and age categories who used a video game console. The results are presented in the following frequency distribution. Gender and Frequency Age Group (in millions) Males 2-11 13.1 Females 2-11 14.0 Males 12-17 12.1 Females 12-17 6.8 Males 18-34 16.4 Females 18-34 10.8 Males 35-49 15.2 Females 35-49 11.4 Males 50+ 3.0 Females 50+ 2.8 (a) Construct a relative frequency distribution.16) 6 points A fair die is rolled six times. What is the probability that it comes up 4 at least once? Write your answer as a fraction or a decimal, rounded to four decimal places.3) Identify the kind of sample as cluster, convenience, systematic, voluntary response, simple random, stratified a) 2 points The director of a hospital pharmacy chooses at random [00 people age 60 or older from each of three surrounding counties to ask their opinions of a new prescription drug program. Your answer b) 2 points A pollster walks around a busy shopping mall, and approaches people passing by to ask them how often they shop at the mail. Your answer e) 2 points A smartphone app produces a message requesting customers to click on a link to rate the app. Your answer f) 2 points A salary committee for a Midwestern college uses a random number generator to select 40 employees based on their employee number and asks them questions about the proposed benefit package. Your answer12) A population has mean u = 18 and standard devlatlon U = 6. Round the answers to two decln'lal places as needed. 2 points (a) Find the zscore for a population value of l. 2 points (b) Find the z-score for a population value of 15. 4 points (c) What number has a z-score of 2.3? 15) 5 points Shuffle: Charles has seven songs on a playlist. Each song is by a different artist. The artists are Celine Dion, Phil Collins, Elton John, Mariah Carey, Joey Mcintyre, Kavana, and Adam Rickitt. He programs his player to play the songs in a random order, without repetition. What is the probability that the first song is by Adam Rickitt and the second song is by Phil Collins? Write your answer as a fraction or a decimal, rounded to four decimal places.Since this is a take home test in each question show or explain your work for credit. Just answers without supporting calculations or explanations will not give you a credit in most of the cases. Chapter 1 1) 2 points Determine whether the number described is a statistic or a parameter. The average number of pages for all books In a library is 31?. Your answer 2) 2 points Determine whether the number described is a statistic or a parameter. The average age of the employees in a certain company is 35 years. Your answer 8) 10 points The geyser Old Faithful in Yellowstone National Park alternates periods of eruption, which typically last from 1.5 to 4 minutes, with periods of dormancy, which are considerably longer. The following table presents the durations, in minutes, of 30 dormancy periods that occurred during a recent year. 59 71 101 82 98 83 89 93 83 116 82 88 93 59 105 59 92 61 101 86 89 93 88 87 71 90 66 90 92 92 (a) Construct a frequency distribution using a class width of 5, and using 55 as the lower class limit for the first class.\f9) 4 points Construct a stem-and-leaf plot for the following data, in which the leaf represents the hundredths digit. Do not separate the answers with a comma. If there are no leaves, select the "None" button. 4.91 5.08 4.99 5.04 4.82 5.26 5.06 4.96 5.24 5.07 5.11 4.88 5.03 4.91 5.23 4.87 5.08 5.16 5.02 4.98 4.81 5.21 5.09 4.85 5.13 5.09 In a stem-and-leaf plot, the rightmost digit is the leaf, and the remaining digits form the stem.4) 2 points Determine whether the data described are qualitative or quantitative. Time it takes to run a marathon. Your answer_ 5) 2 points Determine whether the data described are nominal or ordinal. A local science fair awards gold, silver, and bronze ribbons. Your answer 6) 2 points Determine whether the data described are discrete or continuous. The number of questions on a test. Your answerC) 2 points An electronics store randomly pulls the receipts from 20 different days over the past two years and calls all customers who purchased computers on those days to ask about high-speed Internet rates. Your answer d) 2 points A news reporter at a family amusement park asks every 10" person exiting the park about their experience at the park. Your answer WChapters 13) Statistics grades: In a statlstics class of 42 students, there were 11 men and 31 women. Six of the men and seven of the women received an A In the course. A student is chosen at random from the class. Give all answers as decimals rounded to 4 digits after the decimal point 2 points (a) Find the probability that the student is a woman. (b) Find the probability that the student received an A. 3 _ t porn 5 \f14) Sick computers: Let I be the event that a computer contains a virus, and let / be the event that a computer contains a worm. Suppose P (V) = 0.12, P (W) = 0.63, P(V and W) = 0.04. 4 points (a) Find the probability that the computer contains either a virus or a worm or both. 4 points (b) Find the probability that the computer does not contain a worm.Chapter 3 10) 10 points Be my Valentine: The following frequency distribution presents the amounts, in dollars, spent for Valentine's Day gifts In a survey of 120 U.S. adults in a recent year. Approximate the mean amount spent on Valentine's Day gifts to two decimal places. Amount Frequency 0-19.99 19 20.00-39.99 10 40.00-59.99 21 60.00-79.99 19 80.00-99.99 12 100.00-119.99 10 120.00-139.99 140.00-159.99 160.00-179.99 180.00-199.99 200.00-219.99 220.00-239.99 - N 240.00-259.99