Answer :
To compute the cumulative frequencies, we need to add the frequency values as follows:
Score Cumulative Frequency
50 - 59 4
50 - 69 6 = 4 + 2
50 - 79 13 = 6 + 7
50 - 89 23 = 10 + 13
50 - 59 30 =23 + 7
To compute the cumulative frequencies, we need to add the frequency values as follows:
Score Cumulative Frequency
50 - 59 4
50 - 69 6 = 4 + 2
50 - 79 13 = 6 + 7
50 - 89 23 = 10 + 13
50 - 59 30 =23 + 7