many things can contribute to the variability in a sample. Suppose the members of a youth group have just completed a measurement inventory that assesses an individual's self-esteem. half of the youth group completed the questionnaire at the beginning of their weekly gathering, and the other half completed the questionnaire at the end of their gathering. some of the youth groups members are male, and some are famle. They range in age from 13 to 18 years. Name at least five things that might lead t variations in response between participants. answer

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?