Answer:
The variance is
Step-by-step explanation:
From the question we are told that
The sample size is n = 21
The sum of squares is
Generally the variance is mathematically represented as
substituting values
Linh buys two T-shirts for $12 each, a pair of shoes for $28, and a pair of jeans for $45. She has a coupon for 30 percent off h
3 answers:
Answer:
The final price is $ 67.9.
Step-by-step explanation:
Given,
The price of each shirt = $ 12,
⇒ The price of 2 shirts = 2 × $ 12 = $ 24,
Also, a pair of shoes for $28, and a pair of jeans for $45,
So, the total purchase = $ 24 + $ 28 + $ 45 = $ 97,
Since, there is a coupon for 30 percent off her total purchase,
Hence, the final purchase = (100-30) % of $ 97
= 70 % of 97
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Answer:
30%
Step-by-step explanation:
<h2><u>Percentage change </u></h2><h3>formula :</h3>= 50 - 35 = 15
=