(1.) Starting with the data values 70 and 100 add three data values to the sample so that the mean is 87 the median is 88 and the mode is 88.(2.) A class of 15 kindergarteners had the following weights in pounds: 36 48 40 49 53 44 49 40 51 52 50 35 44 48 43 Find the mean variance and standard deviation.(3. ) An aptitude test has a mean of 44 and standard deviation of 7. Find the corresponding z scores for: a test score of 111 a test score of 153(4.) Nine households had the following number of children per household: 4 5 4 4 1 3 8 5 1 Find the mean median mode range and midrange for these data.(5.)You are given the following data. xy211319445195271476 Find: SS(x) SS(y) SS(xy) The linear correlation coefficient r The slope b1 The y-intercept b0