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Homework: Online Assignment #7 . . . . . Save Discrete distributions and Bi Score: 0 of 1 pt 4 7 of 40 (37 complete) v b M Score: 79.7%, 31.88... 5.1 .21 Question HelpV a Refer to the accompanying table. which describes the number of adults in groups of ve who reported sleepwalking. Find the mean and standard deviation for the numbers of sleepwalkers in groups of ve. a Click the icon to view the data table. The mean is El sleepwalker(s). (Round to one decimal place as needed.) 0 Table of numbers of sleepwalkers and probabilities Print Done Homework: Online Assignment #7 Discrete distributions and Bi 999.9 9977 9. 9 9 9.99979. 7977. 5.1.15 Question Help '7 'a Refer to the accompanying table, which describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Find the mean and standard deviation for the number of girls in 8 births. Save a Click the icon to view the data table. The mean is u = D girl(s). (Round to one decimal place as needed.) Homework: Online Assignment #7 Discrete distributions and Bi 3...... o... p. . . IWS79.7%,31.88... 5.1.24 Question Help v a The accompanying table describes the random variable x, the numbers of adults in groups of ve who reported sleepwalking. Complete parts (a) through (d) below. Save g Click the icon to view the table. a. Find the probability of getting exactly 4 sleepwalkers among 5 adults. E (Type an integer or a decimal. Do not round.) Homework: Online Assignment #7 Save Discrete distributions and Bi Score: 0 of 1 pt 8 of 40 (37 complete) V W Score: 79.7%, 31.88... 5.1.24 Question Help The accompanying table describes the random variable x, the numbers of adults in groups of five who reported sleepwalking. Complete parts (a) through (d) below. Click the icon to view the table. a. Find the probability of getting exactly 4 sleepwalkers among 5 adults. (Type an integer or a decimal. Do not round.) i Probability Distribution for x - X X P(x) 0. 162 1 .446 2 0.254 3 .111 4 0.023 5 0.004 Print Done Enter your answer in ?Homework: Online assignmnet #8 Normal approximation to the Score: 0 of1 pt 4 50111 (11 complete)v } IW Score: 73.64%, 8.1 of 6.6.9-T Question Help V 'u' Use a normal approximation to nd the probability of the indicated number of voters. In this case, assume that 161 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged 18-24, 22% of them voted. Probability that fewer than 40 voted The probability that fewer than 40 of 161 eligible voters voted is D. (Round to four decimal places as needed.) Homework: Week 7 Save Score: 0 of 1 pt 15 of 19 (19 complete) V Score: 64.47%, 12.... X 10.5.57 Question Help Suppose Bill purchases a car and he is going to finance $12,900 for 48 months at an APR of 6.9% compounded monthly. Find the monthly payments on the loan. The monthly payment is $ (Do not round until the final answer. Then round to the nearest cent as needed.)Homework: Week 7 Save Score: 0 of 1 pt 16 of 19 (19 complete) V N Score: 64.47%, 12.... X 10.5.58 Question Help Suppose Bill purchases a car and he is going to finance $13,300 for 48 months at an APR of 8.4% compounded monthly. Find the monthly payments on the loan. The monthly payment is $ (Do not round until the final answer. Then round to the nearest cent as needed.)Homework: Week 7 Save Score: 0 of 1 pt 17 of 19 (19 complete) Score: 64.47%, 12.... X 10.5.59 Question Help Suppose Gwen wants to buy a car. The dealer offers a financing package consisting of a 3.9% APR compounded monthly for a term of 4 years. Suppose Gwen wants her monthly payments to be at most $380. What is the maximum amount that she should finance? The maximum amount Gwen should finance is $ (Do not round until the final answer. Then round to the nearest dollar as needed.)Homework: Week 7 Score: 0 of 1 pt 4 18 of 19 (19 complete) V E}! Score: 64.47%, '12.... 10.5.61 Question Help V a Afamily needs to take out a 15-year home mortgage loan of $90,000 through a local bank. Annual interest rates for 15-year mortgages at the bank are 7.5% compounded monthly. (a) Compute the family's monthly mortgage payment under this loan. (b) How much interest will the family pay over the life of the loan? Homework: Week 7 Score: 0 of 1 pt { 19 of 19 (19 complete) v DHW Score: 64.47%, 12.... 10.JOQ.65 Question Help V '5 Elizabeth went on a fabulous vacation in May and racked up a lot of . charges on her credit card. When it came time to pay her June credit Date card bill, she left a balance of $1100.00. Elizabeth's credit card billing cycle runs from the 19th of each month to the 18th of the next month, and her Interest rate 15 16.5%. She started the bllllng cycle June 19-July -$ 35 18 with a previous balance of $1100.00. In addition she made three purchases, with the dates and amounts shown in the table to the right. 61'30 $30.00 715 $93.75 On July 15 she made an online payment of $500.00 that was credited to - 7115 Payment $500.00 a. Find the average daily balance on the credit card account for the billing cycle June 19-July 18. her balance the same day. Complete parts a through c. The average daily balance for the billing cycle is $|:|. (Round to the nearest cent as needed.) Homework: Week 7 Score: 0.5 of 1 pt 1 9 of 19 (19 complete) V > IW Score: 64.47%, 12.... 1 03.31 Question Help V a Consider a CD paying a 3.3% APR compounded monthly. (a) Find the periodic interest rate. (b) Find the future value of the CD if you invest $3000 for a term of four years. (a) The periodic interest rate is 0.275 %. (Round to three decimal places as needed.) (b) The future value of the CD if you invest $3000 for a term of four years is $8 (Use the answer from part (a) to nd this answer. Round to the nearest cent as needed.) Homework: Week 12 Score: 0 of 1 pt 4 1 of 8 (0 complete) 7 } HW Score: 0%, 0 of 8 pts 14.1.1 Question Help V a As part of a sixth-grade class project, the teacher brings to class a large jar containing 200 gumballs of two different colors: red and green. Andy is asked to draw a sample of his own choosing and estimate the number of red gumballs in the jar. Andy draws a sample of 20 gumballs, of which 5 are red and 15 are green. Use Andy's sample to estimate the number of red gumballs in the jar. There are approximately El red gumballs in the jar. (Type a whole number.) Homework: Week 12 Score: 0 of 1 pt ( 2 of 8 (0 complete) V m HW Score: 0%, 0 of 8 ptS 14.1.7 Question Help V a You want to estimate how many sh there are in a small pond. Let's suppose that you rst capture h1 = 1000 sh, tag them, and throw them back in the pond. After a couple of days you go back to the pond and capture n2 = 120 sh of which k = 30 are tagged. Give an estimate of the N-value of the sh population in the pond. The estimated N-value of the sh population in the pond is D. (Round to the nearest whole number as needed.) Homework: Week 12 Score: 0 of 1 pt 4 5 of 8 (2 complete) V ) HW Score: 25%, 2 of 8 ptS 14218 Question Help V A city has 8397 registered voters. There is an election for mayor and there are three candidates for the position: Smith, Jones, and Brown. The day before the election a telephone poll of 640 randomly chosen registered voters produced the following results: 192 people surveyed indicated that they would vote for Smith, 64 indicated that they would vote for Jones and 384 indicated that they would vote for Brown. Complete parts (a) and (b) below. (a) Give the sampling proportion for this survey. The sampling proportion is |:|% (Round to the nearest hundredth as needed.)
