Answer:
The correct answer to the following question will be "90% = 5%" and "95% = 2.5%".
Step-by-step explanation:
The given levels are:
90% and 95%
(a)...
At 90%, we get
⇒
= 
then,
⇒ 
⇒
≅ 
∴ at 90% level of confidence 5% must be chopped off from each of the tail.
(b)...
At 95%, we get
⇒
= 
then,
⇒

⇒
≅ 
∴ at 95% level of confidence 2.5% must be chopped off from each of the tail.
The answer is 90 lightbulbs.
b(n) - the number of light bulbs
n - the number of chandeliers
The function is b(n) = 6n
If n = 15, then:
b(15) = 6 · 15 = 90
Therefore, the number if light bulbs needed for 15 chandeliers is 90.
Answer:

Step-by-step explanation:
To find the gradient (slope) of the given <u>linear relation</u>, use <u>arithmetic operations</u> to isolate y:
Given relation:

Add 5x to both sides:


Divide both sides by 3:


<u>Slope-intercept form of a linear equation</u>

where:
- m is the slope (gradient)
- b is the y-intercept
Comparing the rewritten equation with the slope-intercept formula, the gradient (slope) of the given linear relation is ⁵/₃.
Learn more about linear equations here:
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The answer is .6666666667
A company offers free shipping on items that weigh less than 4000 grams. how many kilograms is that?
the answer is 4 kilograms because 1000 grams equal 1 kilogram
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