Marino collects data from a random sample of 7th grade students. Out of the 40 students who responded, 7 attended afterschool programs. Of the 200 7th graders attending, how many would you expect to attend afterschool programs? 35 students

14 students

28 students

42 stu

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Find the distance between c and d on the number line c=3 and d=11