An amusement park has opened a new roller coaster. it is so popular that people are waiting for up to 3 hours for a 2-minute ride. concerned about how patrons (who paid a large amount to enter the park and ride on the rides) feel about this, they survey every every 15th person person in line for the roller coaster, starting from a randomly selectedline. complete parts a through d below. a) what kind of sample is this? b) what is the sampling frame? c) is it likely to be representative? d) what members of the population are likely to be omitted?

a) Systematic sampling

b) patrons in line on that day at the time

c) no. Only who think it worth the wait are likely to be in line. Also, those who don’t like roller coasters aren’t in the sampling frame, so the poll will not get a fair picture of whether park patrons feel  about long lines for roller coaster rides.

d) they need to also sample guest who are not in line for the coaster. There is selection bias.

Hope this helps!

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: