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3 years ago

Does anyone know how to do this?

Mathematics

1 answer:

azamat3 years ago

4 0

Answer:

The last one for the x column 12.8, and the last two for the y columns are 16 and 64.

Step-by-step explanation:

So you know that you have to multiply 0.8 by 4 to get 3.2, right? If you have to multiply 0.8 by 4, that means that you also have to multiply 4 by 4.

Sorry I'm not a great teacher :/

Hope this helps!

You might be interested in

Which expression is equivalent to 1/4 n -16?

Amanda [17]

Answer:

Option B: 1/4(n - 64)

Step-by-step explanation:

As given that:

= 1/4n - 16

By taking 1/4 common: 4 will get multiplied by 16

As 16*4 = 64 so,

The expression would become:

=1/4(n -64)

i hope it will help you!

8 0

4 years ago

Which group has a larger median number of bones discovered?

lidiya [134]

Answer:

Group A has a larger median

Step-by-step explanation:

Group A : 0,1,2,3,3,3,4,4,5,5,7,7,8,9,9

Group B : 0,1,1,1,1,2,2,2,3,3,3,5,,6,6,7,8,8,9,9,9

You cross the first number out then you cross the last number. You continue that pattern until you have one or two digits left. If you have two digits left, you add them then divide by two. That the median. But, if you only have one digit, that number is the median.

3 0

3 years ago

Select all of the true statements about the standard deviation of a quantitative variable. 1. Standard deviation is resistive to

andrezito [222]

Answer:

Considering the first statement

Standard deviation is resistive to unusual values

This statement is false because standard deviation is the numeric measure of deviation of the each observation from the mean

Considering the second statement

The standard deviation of a set of values is equal to 0 if and only if all of the values are the same.

This statement is true because standard deviation is the numeric measure of deviation of the each observation from the mean.

Considering the third statement

Standard deviation is never negative.

This statement is true because standard deviation is the numeric measure of deviation of the each observation from the mean.

Considering the fourth statement

Changing the units of a set of values (e.g., converting from inches to feet) does not affect its standard deviation

This statement is false because standard deviation is the numeric measure of deviation of the each observation from the mean

Considering the fifth statement

If a set of values has a mean of 0 and a standard deviation that is not 0, then adding a new data point with a value of 0 will have no effect on the standard deviation.

This statement is false because , let take an example

x -4 - 3 0 3 4

Generally the mean is mathematically evaluated as

$\= x = \frac{\sum x_i }{n}$