An article sells for $415.80. You wish to discount it by 20%. At what price will you offer it after the discount?
2 answers:
Answer:
Price will you offer it after the discount is $332.64 .
Step-by-step explanation:
As given
An article sells for $415.80.
You wish to discount it by 20%.
20% is written in the decimal form .
= 0.20
Discount price = 0.20 × Article cost
= 0.20 × 415.80
= $ 83.16
Price offer after the discount = Selling price of the article - Discount price
= $415.80 - $ 83.16
= $ 332.64
Therefore price will you offer it after the discount is $332.64 .
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Answer:
Option (b) 36.7
Step-by-step explanation:
Data provided in the question:
Treatment 1 Treatment 2 Treatment 3 Treatment 4
Sample Size 50 18 10 17
Sample Mean 32 36 42 48
Now,
The overall mean is calculated as
=
Here, Xi = Sample mean
n = sample sizes
Thus,
Overall mean
= [ (50 × 32) + (18 × 36) + (10 × 42) + (17 × 48) ] ÷ [ 50 + 18 + 10 + 17 ]
= [ 1600 + 648 + 420 + 816 ] ÷ 95
= 36.67 ≈ 36.7
hence,
Option (b) 36.7