study indicates that 29% of singles have have tried online dating. You randomly sample 9 singles. Find the obability that less than 2 have tried online dating. ter your answer as an equation or as a number rounded to 4 decimal places.

Uberya Towing Services repair vehicles that break down at an average 7.5 vehicles per day. The mechanic crew can service an average of 10 vehicles per day. What is the average time before the facility can return a breakdown to service?

General Social Survey (GSS) 2006 collected the data of the number of people in each household in the U.S. The variable name is "hompop."

According to recent data, 12 percent of people are left handed. In a sample of 20 people, how many would you expect to be left handed? Give the exact number.

Lionel has just gone grocery shopping. The mean cost for each item in his bag was $3.19. He bought a total of 7 items and the prices 6 of those items are listed below. $2.16,$3.24,4.03,$3.27,$1.87,$3.86. Determine the price of the 7th item in this bag

A tidal wave or tsunami is usually the result of an earthquake in the Pacific Rim, often 1000 or more miles from Hawaii. Tsunamis are rare but dangerous. Many tsunamis are small and do little damage. However, a tsunami nine meters or higher is very dangerous. Civil Defense authorities sound an alarm telling people near the beach to go to higher ground. About 30% of all recorded tsunamis have been nine meters or higher.† You are writing a report about five recent earthquakes in the Pacific Rim and you want to include a brief statistical profile of some possible events regarding tsunamis in Hawaii. Let r be the number of tsunamis nine meters or higher resulting from five randomly chosen earthquakes in the Pacific Rim. What is the probability none of the tsunamis are nine meters or higher? (Round your answer to three decimal places.)

Jovan asked 2000 people if they are afraid of spiders. 274 people said yes. What percent of the people surveyed does this represent?

Find P₄₁ , which is the score separating the bottom 41% from the top 59%.P₄₁ =Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

About 40% of Jayden's texts are to his brother. 14. If Jayden sent 1500 texts last month, about how many did he send to his brother?

Suppose the proportion of all college students who have used marijuana in the past 6 months is p = 0.40. In a class of 125 students that are representative of all college students, would it be unusual for the proportion who have used marijuana in the past 6 months to be less than 0.34? Explain how you made your decision.