Answer with explanation:
Mean of the data set
= 112
Standard Deviation of the data set
=2.5
Since , 50% of data lies on both side of the mean.
Z at 50% = 0.1915
Margin of error for this data set
Margin of error=0.045(approx)
A square has 2 pairs of parallel lines
2.75 is 110%
2.75/1.1=2.50
Therefore, the main bill was two and a half dollars
Answer:
(-1,0): x axis and 2nd quadrant, (3,-3): fourth quadrant, (-4,-3): 2nd quadrant, and (7,6): first quadrant
Step-by-step explanation: