Answer:
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Step-by-step explanation:
The answer is D, the last one.
To find the answer, you must first find 2/6 of 24.
24 ÷ 6 = 4
4 × 2 = 8
We now know that 8 council members support the idea. All that needs to be done is subtract 8 from 13, which equals 5.
Answer:
The function shown by the graph is ⇒ 1st answer
Step-by-step explanation:
<em>To find the function chose two points from the graph and substitute their x-coordinates in each function, the right function we give you the corresponding y-coordinates</em>
From the figure:
∵ The graph passes through points (2 , 1) and (3 , 1.5)
∵
∵ x = 2
∴
∴
∴
∴ f(2) = 1 ⇒ same value of y-coordinate
∵ x = 3
∴
∴
∴
∴ f(3) = 1.5 ⇒ same value of y-coordinate
∴ The function shown by the graph is
Answer:
b. quadruple the sample size.
Step-by-step explanation:
Given that a 95% confidence is given by (15,20) .
this implies that mean = average of lower and higher bounds of confidence interval =
Margin of error = Upper bound - Mean =
Confidence level = 95%
Critical value = 1.96
Std error =
Std devition = Std error * sqrt n = 6.3775
If we want to reduce margin of error by half we must get margin of error as 1.25
For that std error for same critical value = 0.63775
Std deviation did not change
So sample size only changed which implies that sample size is 4 times the original
b. quadruple the sample size.