cumulative frequency

This les Identify the cumulative frequency distribution that corresponds to the given frequency distribution Number Speed of Cars 0-29 30-59 60-89 90-119 OA. Cumulative O B. Cumulative Speed Frequency Speed Frequency Less than 30 100 Less than 30 0.04 Less than 60 Less than 60 0.20 Less than 90 Less than 90 0.80 Less than 120 Less than 120 1.00 O C. Cumulative OD. Cumulative Speed Frequency Speed Frequency 0-29 Less than 30 30-59 Less than 60 60-89 Less than 90 90-119 100 Less than 120