Question 1 a) Patients who undergo chronic hemodialysis often experience severe anxiety. The data below shows the score results from a psychiatric questionnaire for patients that viewed relaxation videotapes, where higher scores correspond to higher anxiety. .5; . III. Construct a frequency distribution. (3 Marks) Using the result from part (i). calculate the relative frequencies for each class. (1 Marks} Using the result from part (i). calculate the cumulative frequencies for each class. (1 Marks) Construct a frequency histogram for these data. (3 Marks) Using the result from part (i). compute the mean. (2 Marks} . Using the result from part (v). compute the standard deviation. (5 Manta)