2 years ago

What is the Mean Average deviation from the Mean? Numbers: 6, 2, 3, 3, 2, 2

Mathematics

1 answer:

Irina-Kira [14]2 years ago

6 0

Answer:

2.42

Step-by-step explanation:

standard deviation= sqrt(variance)

Variance=E[X2] - E[X]2

E[X] = sum(X)/n=35/9, so E[X]2 = 1225/81

E[X2] =sum(X2)/n = 189/9 = 170/81

Variance= 476/81

Standard deviation = sqrt(476/81) ~2.42

You might be interested in

Li needs 15 pieces of string each 1/2 of an inch long. she cut a 6 inch piece of string into pieces that are 1/2 of an inch long

Paraphin [41]

3 more hope this helps

4 0

3 years ago

What's 3x + 10 - x + 12

Zinaida [17]

2x+22 is the answer.

5 0

3 years ago

Read 2 more answers

What is the following sum 3b^2

densk [106]

The given expression is $3b^2*(\sqrt[3]{54a}) + 3*(\sqrt[3]{2ab^6})$

This can be simplified as :

= $3*b^2*(\sqrt[3]{27 *2*a}) + 3*(\sqrt[3]{2*a*b^6})$

We know that: $\sqrt[3]{27} = 3$

Similarly we also can simplify: $\sqrt[3]{b^6} = b^2$

So our expression will look like this:

= $3*3*b^2*(\sqrt[3]{2a}) + 3*b^2*(\sqrt[3]{2a})$

= $9b^2*(\sqrt[3]{2a}) + 3b^2*(\sqrt[3]{2a})$

= $\sqrt[3]{2a}*(9b^2 + 3b^2)$

= $\sqrt[3]{2a}*(12b^2)$

This can also be written as:

$12b^2(\sqrt[3]{2a})$

So the Answer is Option B

6 0

2 years ago

Read 2 more answers

Maya is going to an amusement park. The price of admission into the park is $10, and once she is inside the park she will have t

Dvinal [7]

Answer:

15 rides= 40 and r rides= 10+2r

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Samantha needs 9 feet of fencing to make repairs from a storm. If the hardware store sells fencing only in yards, how much

Oksi-84 [34.3K]

It's C. because 3 yards is 9 feet

6 0

2 years ago

Read 2 more answers