2 years ago

Please help!!! The last one. Word answer

1 answer:

4 0

Often, variability is most usefully expressed in the same units as the original data. That's what <em>standard deviation</em> (square root of variance) does. In situations where that is the case, the variance is useful only for getting to the value of standard deviation.

You might be interested in

Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Fynjy0 [20]

Answer:

Step-by-step explanation:

4 0

3 years ago

Pythagorean theorem, I'm trying to fix my grade for school so I get my phone back

Harrizon [31]

If you would illustrate the problem, you will be able to formulate a triangle with the measurement of the hypotenuse (distance between the two shops) to be missing. Using the Pythagorean Theorem, the formula to compute for the hypotenuse is:

c = √a^2 + b^2

c = √(20)^2 + (13.5)^2

c = √400 + 182.25

c = √582.25

c = 24.13 km

Therefore, the distance between the two shops is approximately 24.13 km.

4 0

3 years ago

Read 2 more answers

The points (-5,r) and (-2,15) lie on a line with a slope of 3. Find the missing coordinate r. <br> .

Komok [63]

I hope this helps you

5 0

3 years ago

If angle a has the terminal ray that falls in the fourth quadrant and cosine a equals 5/9 then determine the value of sin a in s

Tema [17]

Answer: $-\dfrac{2\sqrt{14}}{9}$

Step-by-step explanation:

Given

$\cos a=\dfrac{5}{9}$

$a$ lies in the fourth quadrant

So, sine must be negative in the fourth quadrant

Using identity $\sin ^2 x+\cos^2 x=1$ to find sine value

$\Rightarrow \sin^2 a=1-\dfrac{5^2}{9^2}$

$\\\\\Rightarrow \sin^2 a=1-\dfrac{25}{81}\\\\\\\Rightarrow \sin^2 a=\dfrac{56}{81}\\\\\\\Rightarrow \sin a=-\sqrt{\dfrac{56}{81}}\\\\\\\Rightarrow \sin a=-\dfrac{2\sqrt{14}}{9}$

8 0

3 years ago

What multiplys to -90 and adds to 9?

vagabundo [1.1K]

The answer would be 3

3 0

3 years ago