4 pounds of grapes cost 5$ 7 pounds of grapes cost $8.75. What is the cost per pound?
2 answers:
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Answer:
The correct answer is:
(a) 0.54
(b) 0.0385
Step-by-step explanation:
Given:
Restaurant tax,
p = 0.54
Sample size,
n = 168
Now,
(a)
The mean will be:
⇒ μ
(b)
The standard error will be:
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