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3 years ago

Here is a list of numbers: 20, 8, 6, 11, 3, 15, 11 ,20 ,12 ,13 State the median.

Mathematics

2 answers:

ra1l [238]3 years ago

6 0

Answer: 18

Step-by-step explanation:

solong [7]3 years ago

3 0

Answer:

Step-by-step explanation:

1. Arrange the numbers from least to greatest.

3,6,8,11,11, 12,13,15, 20

2. Start from the two ends and cross them off until you're left with what's in the middle.

6,8,11,11,12,13,15

8,11,11,12,13

11,11,12

3. The median is 11 because that is the number you are left with.

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Answer: The point estimate of the population mean is 23. The margin of error for the confidence interval is 2.

Step-by-step explanation:

The confidence interval for the mean is of the form is given by :-

$\overline{x}-\text{error}\leq\mu\leq\overline{x}+\text{error}$

Given : Lower bound: $\overline{x}-\text{error}=21$

Upper bound : $\overline{x}+\text{error}= 25$

Then ,the sum of lower and upper bound will be :-

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Since $\overline{x}-\text{error}=21$

$\Rightarrow\ \text{Error}=\overline{x}-21=23-21=2$

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