Match the name of the sampling method descriptions given. Situations:

choosing every 5th person on a list
separating all students by grade level, and selecting 10 students from each grade
randomly select two tables in the cafeteria and survey all the people at those two tables
writing everyones name on a playing card, shuffling the deck, then choosing the top 20 cards
ask all the students in your math class
Sampling Method

Systematic:
a. Cluster
b. Convenience
c. Simple Random
d. Stratified

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.