A poll of 1,234 adults found that 62% expect an increase in environmental pollution in the next decade. Take the poll's sample to be an SRS of all adults. Which of these is a correct 95% confidence statement ?

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be able to prepare using the sauce?

Which is the focus of a parabola with equation y2=4x

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?