Suppose you roll a number cube. what is the probability that you roll an odd number

I’m stuck on this i don’t understand.

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.