$18.50 + $6.75x=
and then for 4 hours it would be $45.50
Answer:
true
Step-by-step explanation:
If the standard deviation is increased and the sample size and confidence level stay the same, then the margin of error will also be increased
The answer is A=63
9×7=63
728
2+6+18+...+486
a=2
r=6/2=3
