Answer:
I hope this helps:)
Step-by-step explanation:
tony buys a pair of running shoes for $80. he pays 9% sales tax. How much does the pair of running shoes cost in total.
1 answer:
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Answer: 2.46
Step-by-step explanation:
Formula for x-score is given by :-
, where = Sample mean ,
= population mean,
= population standard deviation, n= sample size.
As per given , n=10
= $29,056
= $3,339
= $31,650
Then,
Hence, the z-score = 2.46