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4 years ago

6

When calculating the standard deviation, what must be done in order to obtain an unbiased estimate of the population? add 1 to n

subtract 1 from x subtract 1 from n subtract 1 from n?

1 answer:

Orlov [11]4 years ago

6 0

When yi calculate 1 by 1 by 1 by 1 by 1 by 1 you gets 2qu2y458yq4t5uhq35th

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The triangles shown are similar. Find MV.

Mnenie [13.5K]

Answer:

9 units

Step-by-step explanation:

The complete question in the attached figure

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional

so

$\frac{MT}{CS}=\frac{MV}{CI}$

substitute the given values

$\frac{3}{2}=\frac{MV}{6}$

solve for MV

Multiply in cross

$2MV=3(6)\\MV=9\ units$

3 0

3 years ago

Complete the statements about calculating mean using the data set: 4, 6, 1, 9, 12, 3, 11, 2.

EleoNora [17]

Answer: 6 is the average

Step-by-step explanation:

: 1,2,3,4,6,9,11,12

add them up divide 48 by 8

6 0

4 years ago

Read 2 more answers

Will side lengths of 12, 18, and 6 make a right triangle? A Yes, because 12 + 6 = 18 B Yes, because 62 = 12 C No, because 36 + 1

seropon [69]

The answer is A. Yes Bc 12 +6 =18

6 0

3 years ago

natima [27]

Answer:

4.9 feet

Step-by-step explanation:

First, we need to determine the height of the building using the following:

$L^2 = H^2 + B^2$

Where

H = Height of the building

L = Length of the first ladder = 20ft

B = Distance from the base of the building = 10ft

So, we have:

$20^2 = H^2 + 10^2$

$400 = H^2 + 100$

$H^2 = 400 - 100$

$H^2 = 300$

$H = \sqrt{300$

Next, is to determine the distance of the new ladder from the base of the building (B) using Pythagoras theorem using:

$L_2^2 = H^2 + B_2^2$

Where

$L_2 = 18$ --- Length of the second ladder

$H = \sqrt{300$ ----- Height of the building

So, we have:

$18^2 = \sqrt{300}^2 + B_2^2$

$324 = 300 + B_2^2$

$B^2_2 = 324 - 300$

$B^2_2 = 24$

Solving for B2, we have:

$B_2 = \sqrt{24$

$B_2 = 4.9$

8 0

3 years ago

How many different ways can 12 racecars finish in first, second, and third place?

Agata [3.3K]

Answer:

c 1,320

Step-by-step explanation:

12 x 11 x 10 = 1,320

only one person can finish in each place

4 0

4 years ago