A random sample of 30 receipts for individuals shopping at the community drug store had a sample mean of x=$28.19 and a standard deviation of s=$4.06 use the Chevy Sheba theorem to find the smallest interval centered on the mean in which we can expect at least 88.9% of data to fall

The data represents the semester exam scores of 8 students in a math course. {51,91,46,30,36,50,73,80} what is the five-number summary?

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?

Which is f(5) for the function –2x2 + 2x - 3?