Question

Erica's marks in eight consecutive mathematics examinations were:94,83,75,52,71,68,75,49

Answer 1

(a) The total marks Erica scored is the sum of the given marks:

total = 94 + 83 + 75 + 52 + 71 + 68 +75 + 49 = 567

(b) The mean is given by the quotient between the total and the number of marks, as follow:

mean = 567/8 = 70.875