STATS Three Problems Assignment

Construct a frequency Distribution given data set using 6 classes. In the table, include the midpoints, relative frequencies and cumulative frequencies. Which class has the greatest frequency and which has the least frequency?Amount in dollars spent on books semester:446 354 293 515 265 536 254 196 211 101 59 227 46 312 375471 445 371 40 512 480 528 508 530 392 211 375 314 423Complete the table, starting with the lowest class limit. Use the min data entry as the lower limit of the first class.Class Frequency Midpoint Relative freq Cumulative fr- – – – –Which class has the greatest frequencythe class with the greatest frequency is from __ to ___which has the least frequency?The class with the least frequency is from ___ to ___1) Students in an experimental psych class did research on depression as a sign of stress. A test was administered to a sample of 20 students. The scores are given.17 11 44 11 42 29 32 26 54 3935 35 26 15 29 13 35 23 48 22a) find the median of the datathe mean is __the median is ___b) draw a stem and leaf plot data using one row per stemwhich stem and leaf plot shows the data?a) 1 | 1592 | 24583 | 1235694 | 25695 | 347b) 42482555923666911357c) 13571358245924692569d) 1135723669925559248c) decribe the shape of the distributiona) skewed rightb) symmetricc) skewed leftd) uniform2) the following list represents the number of absent students from the last nine statistics classes1 6 0 2 5 1 2 1 2calculate the rangecalculate the variancecalculate the standard deviationa) range isb) sample variance isc) standard deviation is______________________________________________-.8075em;=”” vertical-align:=”” baseline;=”” line-height:=”” 1.615;=”” color:=”” rgb(0,=”” 0,=”” 0);=”” font-family:=”” verdana,=”” tahoma,=”” helvetica,=”” arial,=”” sans-serif;=”” background:=”” transparent;”=””>Hours spent studying, x : 0 2 3 4 5 6Test Score, y 36 41 50 46 65 72y=__x+(__)choose the correct graph: (cant copy it so)predict the value of y =3a) 40.7b) 52.7c) 49.7D) not meaningfulPredict the value of y =13a) 49.7b) 109.5c) 52.7d) not meaningfulPredict the value of y = 1.5a) 49.7b) 109.5c) 40.7d) not meaningful_____________________________________________2) the number of hours 6 students watched television during the weekend and scores of each student who took the test the following monday.hours spent watching tv, x 0 1 2 3 3 5test score, y 96 91 85 74 91 66choose the correct scatter plot (cant copy)b) correlation coefficent r is ____c) which of the following best describes the type of correlation?a) strong negative linearb) no linear correlationc) strong positive lineard) weak positive lineare) weak negative linear