Please help me with this

Umm.. just started this 2day and its not on my notes(p′︵‵。)

What values of data might affect the statistical measures of spread and center

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.