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3 years ago

If SS= 162 from a sample of 15 data, find s^2

Mathematics

1 answer:

Genrish500 [490]3 years ago

8 0

Answer:

11.57

Step-by-step explanation:

We have a simple formula to solve this:

$s^2=\frac{SS}{n-1}$

where

SS is sum of squares

s^2 is the variance, and

n is the number of data points

We are given all the info to find out s^2. Hence,

$s^2=\frac{SS}{n-1}\\s^2=\frac{162}{15-1}\\s^2=\frac{162}{14}=11.57$

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3 years ago

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FromTheMoon [43]

Answer:

The solution set can be given as:

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Step-by-step explanation:

Given function:

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To find the domain of the function in set notation.

Solution:

For the function $f(x)$ to exist the denominator must be ≠ 0

We have the denominator $(2x+6)$ which cannot be = 0.

Thus, we can find the domain of the function using the above relation.

The function $f(x)$ will not exist when:

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Dividing both sides by 2.

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$\{x|x\ \epsilon\ R,x\neq -3\}$

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3 years ago

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pshichka [43]

Answer:

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Step-by-step explanation:

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3 years ago

Sherry purchased a new backpack for her daughter. The backpack was on sale for 20% off the regular price. If Sherry paid $28.80

madreJ [45]

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.20X = X - 28.80

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3 years ago

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olga55 [171]

Answer:

M <ABC = 35 degrees.

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3 years ago