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Mandarinka [93]
3 years ago
7

The standard deviation of the distribution of sample means is​ _______.

Mathematics
1 answer:
luda_lava [24]3 years ago
6 0

Answer:

Standard error

Step-by-step explanation:

The standard deviation of the distribution of sample means is called the standard error of the means.

It is denoted by: \sigma_{\bar X}

The standard error is calculated using the formula: \sigma_{\bar X}=\frac{\sigma}{\sqrt{n} }

where n is the sample size and \sigma is the population standard deviation.

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Reika [66]

The value of x will be equal to x = 79.

<h3>What is the triangle?</h3>

Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.

For an isosceles triangle, the value of two opposite angles is equal and the opposite sides are also equal.

The Sum of the three angles is equal to 180 degrees so the third angle will be calculated as:-

Angle = 180 - 142 - 19 = 19

Now applying Lami's theorem in the triangle we will get the third side.

\dfrac{sin\angle A}{a} = \dfrac{sin\angle B}{b} = \dfrac{sin\angle C}{c}

\dfrac{Sin 19}{42}= \dfrac{Sin142}{x}

x = \dfrac{42\times Sin 142}{Sin19}

x = 79

Therefore the value of x will be equal to x = 79.

To know more about triangles follow

brainly.com/question/17335144

#SPJ1

3 0
2 years ago
Which of the following is a valid reason why the quadrilateral shown below is
natima [27]
Answer: B

Explanation:
Definition of congruency for a rhombus
3 0
3 years ago
Read 2 more answers
Please help!
Ivenika [448]

Answer:

B.   (x - 6)(x + 2).

Step-by-step explanation:

x^2 - 4x - 12

We need 2 numbers whose product is the last number -12 and whose sum is the coefficient of x (-4).

These numbers are -6 and + 2.

So the factors are (x - 6)(x + 2).

3 0
3 years ago
Read 2 more answers
The base of a triangle is 10 cm
bonufazy [111]
I’m not sure about this question
4 0
2 years ago
Emily convinced her mom to buy a giant box of her favorite cereal. her mom doesn't think the box will fit on their shelf. the vo
Vlad [161]

Volume is length x height x width.

You are given Volume, Length and width, so we multiply the length and width together then divide the volume by that to find the height.

Length x width = 25 * 10 = 250 square cm.

Height = 10,000 cm^3 / 250 cm^2

Height = 40 cm

8 0
3 years ago
Read 2 more answers
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