Option 2 would be biased. Asking people participating in a walkathon means you are asking people that are already volunteering. To get a non-biased sample, you have to be sure that you are including people that are not guaranteed to be volunteers; you don't have that in this situation.
Answer:
B
Step-by-step explanation:
6/10 = 21/k cross multiply
6k = 210 divide divided sides by 6
k=320/6
k=35
HOPE THIS HELPS ♡
Answer:
c. 38
Step-by-step explanation:
Plug in 2 and 4 for every instance of x in the function g(x).
g(x) = 0.023x³ + 0.4x² − 2.1x + 8.3
g(2) = 0.023(2)³ + 0.4(2)² − 2.1(2) + 8.3 = 5.884
g(4) = 0.023(4)³ + 0.4(4)² − 2.1(4) + 8.3 = 7.772
answer: 5.884 and 7.772
