Jimmy is selling used books at a yard sale. A customer buys 9 books at a cost of $0.75 each and pays with a $20.00 bill. Jimmy m
ust determine c, the amount of change in dollars he should give the customer. Which equation represents c?
I have 55 minutes and 8 questions, please hurry
I have 55 minutes and 8 questions, please hurry
2 answers:
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Answer:
ME=0.014
Sample Proportion=0.725
Step-by-step explanation:
-The margin of error is defined as the percentage by which obtained results differ from the real population value.
-It is calculated as half the difference between the confidence interval levels:
Hence, the margin of error is 0.014
-The sample proportion is mathematically half the sum of the confidence intervals:
Hence, the sample proportion is 0.725