Hello everyone! I really do need a big help on this one, please also include the formula that has been use.

II. DIRECTION: In questions 1-3, find the mean, median, and mode. (Grouped data) 1. Ages of randomly selected residents of Tagaytay Highlands Ages (years) Frequency 0-9 44 10-19 42 20-29 33 30-39 30 40-49 27 50-59 22 60-69 18 70-79 9 2. In a study of reaction times to a specific stimulus, a psychologist recorded the following data (in seconds) Time (in seconds) | Frequency 2.1-2.7 12 2.8-3.4 13 3.5-4.1 7 4.2-4.8 5 4.9-5.5 2 5.6-6.2