True or false: the standard deviation of a set of data values is never a negative number

Mathematics

1 answer:

Anestetic [448]3 years ago

8 0

True I think !! Not to sure

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What does this mean?:<br> How does the data vary?<br> What is the mode?

stellarik [79]

Okay well the mode is the number that appears most pften for ex 112351 the mode is 1 because it is the number that is there more than the others

8 0

3 years ago

What is the value of h when the function is converted to vertex form?

Rudik [331]

The Vertex Form is $y=(x+5)^2+10$
So $h=5$

Hope this helps!!

7 0

3 years ago

Read 2 more answers

Please help Explanation will be appreciated thanks,

Genrish500 [490]

Answer: A; 6.3%

Step-by-step explanation:

Problem 1

For the first problem, we first want to find y so that we can plug it into the expression.

We can use elimination method for the system of equations to solve.

3x+3y=21

3x-y=5

We subtract both equations to eliminate x.

4y=16 [divide both sides by 4]

y=4

Now that we know y, we can plug it into the expression.

$\frac{4}{2} -3$ [divide]

$2-3$ [subtract]

$-1$

We know that the answer is A.

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Problem 2

For the second problem, we need to know how to calculate percent error. The formula for precent error is $\frac{|measured-exact|}{exact} *100%$ . We know that the exact value is 80 because the buyer was supposed to given 80. 75 is the measured value because that was what the buyer was given.