B) Marks 4 5 6 7 8 Frequency 5 y y +1 9 4 1 The table gives the frequency distribution of marks obtained by a number of students in a test. If the mean mark is 5, calculate the: i. ii. 11. Value of y. Mark 3] the modal mark. Mark 2] Describe how you would guide a JHS student to find the number of students who sat for the test. [Mark 6] If 20% of the candidates failed, how many failed? Mark 3] ​