Answer:
I
Step-by-step explanation:
Because independent sample t-tests compare two completely different groups in a sample, which is what the researcher is attempting to do.
Answer:
504
Step-by-step explanation:
80+10x is the expression. To find the cost for 9 guests, simply plug in 9 for x. This becomes an equation reading 80+10(9)=170. The total cost for 9 guests is $170.00.
Interval notation
(-infinity sign, 1)
Set-builder notation
{x|x less than equal to 1}
Answer:
C-2
Step-by-step explanation: