All categories

3 years ago

Calculate the standard deviation. Variance = 107.76. Mean = 34.2

Mathematics

1 answer:

Llana [10]3 years ago

8 0

Answer:

The standard deviation is 10.38

Step-by-step explanation:

Given;

Variance, v = 107.76

mean, x = 34.2

The standard deviation is given by;

standard deviation = √variance

standard deviation = √107.76

standard deviation = 10.381

standard deviation = 10.38 (two decimal places)

Therefore, the standard deviation is 10.38

You might be interested in

Jill is 18 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 3 kilometers per hour.

slava [35]

Answer:

How fast is Joe walking ?

v(Joe) = 1.5km/h

Step-by-step explanation:

v = d/t => d = v·t

Jill

d = 3km/h·4h = 12 km

Joe

d = 18km - 12km = 6km

v = d/t = 6km/4h = 1.5 km/h

6 0

3 years ago

HELP ASAP PLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLSPLS

lyudmila [28]

Answer:

-4.5 :):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):):)

5 0

3 years ago

Read 2 more answers

When you divide me by 2 the remainder is 0. when you divide me by 3 the remainder is 0. i am between 35 and 40.

Furkat [3]

The answer is thirty six inshallah

7 0

4 years ago

Read 2 more answers

Write an equation in standard form of an ellipse that is 50 units high and 40 units wide. The center of the ellipse is (0,0).

Mariulka [41]

Answer:

$\frac{x^2}{400}+\frac{y^2}{625}=1$

Step-by-step explanation:

The equation of an ellipse that has its center at the origin is given by the formula:

$\frac{x^2}{b^2}+\frac{y^2}{a^2}=1$

The given ellipse is 50 units high.

This means that length of the major axis is 50.

$2a=50$

$2\implies a=25$

The ellipse is 40 units wide.

$2b=40$

$\implies b=20$

We substitute these values into the formula to get:

$\frac{x^2}{20^2}+\frac{y^2}{25^2}=1$

$\frac{x^2}{400}+\frac{y^2}{625}=1$

8 0

3 years ago

a ballon has an angle of elevation of 54° from a point on the ground. from the point on the ground to the balloon the distance i

wlad13 [49]

Answer: 202.25 feet.

Step-by-step explanation:

You can draw a right triangle based on the information given in the problem, where the hypotenuse is 250 feet and the opposite side is the height of the balloon asked.

Therefore, you can solve it as following:

$sin\alpha=\frac{opposite}{hypotenuse}$

Substitute values and solve for x, then the result is:

$sin(54\°)=\frac{x}{250}\\x=250*sin(54\°)\\x=202.25$

7 0

3 years ago

Read 2 more answers