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2 years ago

Help R

Mathematics

1 answer:

VLD [36.1K]2 years ago

3 0

There is no mode bc there is no number that repeats its self

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7. These values represent the expected number of paintings a person will produce over the next 10 days. 0, 0, 0, 1, 1, 1, 2, 2,

Natasha_Volkova [10]

The mean of a dataset is the average of the dataset.

The mean is 1.5
The standard deviation is 1.58
The median remains unchanged, the mean increases, and the standard deviation decreases when 5 is increased to a larger value

The given parameters are:

$\mathbf{x = 0, 0, 0, 1, 1, 1, 2, 2, 3, 5}$

(a) Mean and Standard deviation

The mean of the dataset is calculated using:

$\mathbf{\bar x = \frac{\sum x}{n}}$

So, we have:

$\mathbf{\bar x = \frac{0+ 0+ 0+ 1+ 1+ 1+ 2+ 2+ 3+ 5}{10}}$

$\mathbf{\bar x = \frac{15}{10}}$

$\mathbf{\bar x = 1.5}$

Hence, the mean is 1.5

The standard deviation is calculated using:

$\mathbf{\sigma_x = \sqrt{\frac{\sum(x - \bar x)^2}{n - 1}}}}$

So, we have:

$\mathbf{\sigma_x = \sqrt{\frac{(0 - 1.5)^2 + (0- 1.5)^2 + (0- 1.5)^2 + (1- 1.5)^2 + (1- 1.5)^2 + (1- 1.5)^2 + (2- 1.5)^2 + (2- 1.5)^2 + (3- 1.5)^2 + (5- 1.5)^2}{10 - 1}}}$

$\mathbf{\sigma_x = \sqrt{\frac{22.5}{9}}}$

$\mathbf{\sigma_x = \sqrt{2.5}}$

$\mathbf{\sigma_x = 1.58}$

Hence, the standard deviation is 1.58

(b) When 5 is increased to a larger value

When 5 is increased:

The median remains unchanged
The mean increases
The standard deviation decreases

Read more about median, mean, and standard deviation at:

brainly.com/question/12598273

3 0

2 years ago

What is the value of x in this diagram? (PLEASE ANSWER!)

Oduvanchick [21]

Remember the definition of vertical angles.

The angle between 7x+7 and 112 are vertical. They are congruent and with the same measure.

7x +7= 112

Subtract 7 on both sides.

7x= 105

Divide both sides by 7.

x= 15

I hope this helps!
~kaikers

4 0

3 years ago

3) Graph y=-x2+3 State the vertex and axis of symmetry

klasskru [66]

Vertex (0,3)
Axis of symmetry x=0

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2 years ago

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I need a answer for this please

emmasim [6.3K]

Answer:

where is the questin

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What is a congruent triangle

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When two triangles are congruent they will have exactly the same three sides and exactly the same three angles. The equal sides and angles may not be in the same position (if there is a turn or a flip), but they are there

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