A random sample of 40 seniors reveals that 10% of those sampled have assigned parking spaces in the high school’s main lot. This is surprising because, according to the main office of the large high school, 45% of seniors have assigned parking spaces in the high school’s main lot. Which of the following statements is true? The population is all seniors and the sample is the 40 seniors who were randomly selected.
The population is the 40 seniors who were randomly selected and the sample is all seniors.
The population is all assigned parking spaces and the sample is the 4 seniors selected who have an assigned spot.
The population is the 4 seniors selected who have an assigned spot and the sample is all assigned parking spaces.

answer: what are the following choices

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!

what chart am i supposed to follow?