A car the normally sells for 20,000 is on sale for 18,000 what is the discount rate?
1 answer:
(20,000-18,000)÷20,000=0.1=10%
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There is no X intercept.
The Y intercept is (0,10)


so

for all x
first one

C is answer
2nd one

D is answer
Answer:
See Attachment
Step-by-step explanation:
3 sigma= 3×0.146
= 0.438
for upper limit= sample mean + 3 sigma
for lower limit= sample mean - 3 sigma