Please use this formula I provided to solve the questions. Answer in A4 papers. with eligible handwriting . Thanks.

(CLO2:PLO4:C3)(CLO2:PLO7:C3) FORMULA SHEET Sturges Rule: No. of classes : c=1+3.3logn iz range Class width : C Arithmetic mean : n n [X () if n is odd X - L + 2 - F Median : + x() if niseven Mode : Standard deviation : 1- 1 s = n-1 IQR : 2 -2 O, at "+ th term 4 Q, at 3(n + 12 th term 3(mean - median) mean - mode Coefficient of skewness : standard deviation Or standard deviation standard deviation Coefficient of variation : x 100% mean Probability : P(AUB) = P(A) + P(B) mutually exclusive events P(AUB) - P(A) + P(B) - P(AnB) not mutually exclusive events P(AnB) - P(A)P(B) independents events P( A/ B) = P(An B) P(B) conditional probability Page 1 of 7 + 15Heading s Styl 4. The following data record the number of days absence in a week (other than holidays) of a random sample of 50 primary students when the number of confirmed Covid-19 cases a day N before was more than 1,000 cases. N Number of days absent (x) Number of students 0 20 Pic H 5 H A 6 10 H (a) Construct a probability distribution for the data provided above. (2 marks) H H (b) Find the mean and the standard deviation for the number of days absent for a student. (6 marks) H (c) If the probability distribution of the number of days absent remain unchanged for the next 2 (2 No weeks, estimate the total number of absenteeism for the next 2 weeks. Sho marks)