State whether each question results in data with variability.

1. how much time do the students in my school spend on the internet each night?

2. what is the height of the tallest waterslide at wild rides water park?

3. what are the cabin rental prices for each of the state parks in kentucky?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?