Question

17 b, 18, and 21 please and show all work.

c) Construct a cumulative distribution table 17) The following table data are characteristics of voting age population regarding a recent election Males Fem ales Voted 230 370 Did not vote 400 240 a) When a person is chosen at random, find the probability that the person did not vote, given that the person is female b) When a person is chosen at random, find the probability that the person is female or voted c) When two people are chosen without replacement, find the probability of choosing two m ales who voted 18) 65 percent of residents in Greenville, PA are women. When 3 people are selected at random, find the probability that a) at least one wom an is selected b) none of the women is selected 19) A) How many different area code 909 telephone num bers are possible? Assume that the first digit of any phone number cannot be 0 or 1.) B) Suppose a computer requires eight characters for a password. The first three characters must be letters and the rem aining five characters must be numbers. How m any passwords are possible? 20) Use the following frequency table to compute the mean: Clas s 0-4 5-9 Frequency 21) A case of 10 bottles of wines contains 7 Merlot and 3 Cabernet. 3 bottles are chosen random ly WITH replacement a) Find the probability that all 3 are Merlot. b) Find the probability that at least one is Merlot 22) (2 points each) The average annual salary of Mt. SAC professors is S23,000 a) Identify the population of the study b) Is S23,000 a parameter or stasic? Justify your ans wer c) Is S23,000 quantitative or categal? Justify your answer 23) Identify the sampling m ethod used:: An social scientist is studying the effect of education on salary and conducts a survey of 200 selected workers from each of the following categories: less than a high school degree; high school degree; more than high school degree 24) A researcher wants to inves tigate a correlation between meth use as a teen, and having marital problems as an adult a) Identify the population b) What are the two groups that are being com pared? c) What is the explanatory variable? What is the response? d) Find a confounding variable e) Which type of study is more appropriate: observational or experim ental? Justify your answer 25) A study finds that the average cost of a gym mem bership in the US is S34 a month. Is $34 a param eter or statistic? Justify your answer 26) (3 points) Locate the mean, median and mode for the graph shown below Median ModeMean

Answer 1

14 Mal e 2 30 Female 12 40 0.4919十0.4838-0.2983 Female or vote f (A ΞυΟ o men) :0.GS g per som are choosem samal omm mone ot omen seledtel (0,35) こ10, 04 28|こr(A) = 2)