The purpose of a confidence interval is to provide __________________.

Mathematics

1 answer:

netineya [11]3 years ago

4 0

Answer:

D) plausible values that a parameter could take

Step-by-step explanation:

Confidence interval is estimated range of values for a population parameter could take in a given <em>confidence level</em>.

It can be represented as M±ME where

M is the point of estimate

ME is the margin of error

Confidence Intervals is measured to deal with <em>uncertainty</em>. For example, 95% confidence interval for a population mean is (25, 35) means that there is 95% chance that population mean is between the values 25 and 35.

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Aisha wants to paint the four walls of her living room.

sergiy2304 [10]

The total amount Aisha would pay to paint her room is $54.

<h3>What is the cost of painting the rooms?</h3>

The first step is to determine the area of the walls. The walls have the shape of a rectangle. Thus, the formula for the area of a rectangle would be used to determine the area of the wall.

Area of the three walls without a door : 3 x (length x width)

3 x (2.4 x 5.2) = 37.44 m²

Area of the fourth wall with a door : area of the wall - area of the door

(2.4 x 5.2) - (2 x 0.8) = 10.88m²

Total area of the walls : area of the three walls + area of the wall with the door

10.88m² + 37.44 m² = 48.32 m²

The next step is to determine the number of tins that would be needed:

48.32 /12 = 4.03

5 tins would needed

Cost of the 5 tins: (4 x 12) + (0.5 x 12) = $54

To learn more about how to calculate the area of a rectangle, please check: brainly.com/question/16595449

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