The following table gives the joint probability distribution between employment status and college graduation among those either employed or looking for work (unemployed) in the working age U.S. population, based on the 1990 U.S. Census. Joint Distribution of Employment Status and College Graduation in the U.S. Population Aged 25-64, 1990

According to a survey conducted by Deloitte in 2017, 0.4532 of U.S. smartphone owners have made an effort to limit their phone use in the past. In a sample of 90 randomly selected U.S. smartphone owners, what is the probability that between 37 and 39 (inclusively) will have attempted to limit their cell phone use in the past?

The following table shows the distribution of murders by type of weapon for murder cases in a particular country over the past 12 years. Complete parts (a) through (e). (b) What is the probability that a randomly selected murder resulted from a rifle or shotgun? (Type a decimal rounded to three decimal places as needed.) P(rifle or shotgun) = Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. OA. If 1000 murders were randomly selected, exactly of them would have resulted from a rifle or shotgun. B. If 1000 murders were randomly selected, we would expect about of the to have resulted from a rifle or shoto (c) What is the probability that a randomly selected murder resulted from a handgun, rifle, or shotgun? P(handgun, rifle, or shotgun) = (Type a decimal rounded to three decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. OA. If 1000 murders…

Use the data in the table below, which shows the employment status of individuals in a particular town by age group. Age Full-time Part-time Unemployed 0—17 25 177 372 18—25 341 194 344 26—34 460 67 27 35—49 558 179 339 50+ 475 176 362 If a person is randomly chosen from the town's population, what is the probability that the person is under 18 or employed part-time?

According to Harper's Index, 45% of all federal inmates are serving time for drug dealing. A random sample of 15 federal inmates is selected.(b) What is the probability that 2 or fewer are serving time for drug dealing? (Round your answer to three decimal places.)

According to Harper's Index, 60% of all federal inmates are serving time for drug dealing. A random sample of 15 federal inmates is selected. (b) What is the probability that 4 or fewer are serving time for drug dealing? (Round your answer to three decimal places.)

If a graph represents a probability distribution, then the total area under the curve is what?

K The following data represent the number of drivers involved in a fatal crash in 2016 in various light and weather conditions. Complete parts (a) through (c) below. Click the icon to view the data for fatal crashes in 2016. (a) Among fatal crashes in unknown weather conditions, what is the probability that a randomly selected fatal crash occurs when it is dawn/dusk? The probability that a randomly selected fatal crash in unknown weather conditions occurs when it is dawn/dusk is approximately. (Round to three decimal places as needed.) Data table Weather Daylight Dark, but Lighted 5875 497 51 54 255 Normal Rain Snow/Sleet Other Unknown 14,307 875 219 125 810 (...) Dark 8151 681 156 220 548 Dawn/Dusk Other 1183 87 40 71 65 8 2 9 133 X

The higher education research institute at UCLA collected data from 203,967 incoming first-time, full-time freshmen from 270 four-year colleges and universities in the U.S. 71.2% of those students replied that, yes, they believe that same-sex couples should have the right to legal martial status. construct the probability distribution function (PDF). (Round your probabilities to give decimal places.)