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Anettt [7]
3 years ago
13

Mathematical symbols are critical to the discipline of statistics. A symbol can help identify which distribution and what type o

f characteristic is being measured. The lower case Greek letter 'sigma' is which of the following?
Mathematics
1 answer:
Shtirlitz [24]3 years ago
8 0

Answer: sigma is used for measuring Population Standard Deviation.

Step-by-step explanation:

The lower case Greek letter 'sigma' is denoted by the symbol ( \sigma).

This symbol indicates the Population Standard Deviation of the data. Standard deviation means how much variation or dispersion is there in our data. Squaring of standard deviation gives us Variance which is denoted by the symbol \sigma ^{2} .

Formula for Population Standard deviation ( \sigma) is = \sqrt{\frac{\sum (x_i-\mu )^{2}}{N}} ,

                                where x_i = each value from our list of data

                                           \mu = Population mean of data

                                          N = Number of observations in our data

Standard deviation can never be negative and it is very much sensitive to outliers in our data.

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Please help me with this problem quickly i need to finish imagine math soon
Kazeer [188]

Answer:

first is the second box

second is also second box

thris is third box

Step-by-step explanation:

7 0
3 years ago
Pls answer for 20 points i suck at this and it's almost due
Stella [2.4K]

Answer:

1. $22.58

2. $28.70

3. $27.58

4. 15%

Step-by-step explanation:

#3: 22 + 1.98 = 23.98 + 3.60 = 27.58

3 0
3 years ago
2. A square is divided into smaller squares and
Oduvanchick [21]

Answer:

1.5 ft^2

Step-by-step explanation:

Since the length is divided into 4 parts,

Length of a small square = 2/4

= 0.5 ft

Hence,

Area of 1 small square = (0.5)(0.5)

= 0.25 ft^2

Area of shaded portion = Area of 6 small squares

= 6(0.25)

= <u>1.5 ft^2</u>

4 0
3 years ago
Read 2 more answers
What is the area of the shaded region to the nearest tenth?
Aleks04 [339]

Answer:

15.1

Step-by-step explanation:

We know that the area of the circle is \pi r^{2}, but we are looking for the portion of the circle, this means we multiply it by the portion of the circle that is shaded.

Area of shaded region = \pi r^{2} (\frac{x}{360} )

where r = 4 and x = 108, the 360 comes from the fact that the total degrees around the circle is 360, so dividing the total amount of degrees by the angle will give us the portion we are looking for.

Area of shaded region = \frac{108}{360} \pi 4^{2} = 15.1

Another way to think about it is that the area of the total circle is \pi r^{2}, multiplying it by a fraction, a number less than 1, would give us a smaller value.

Hope this helps.

5 0
3 years ago
Please help me and thank you!
Naddik [55]

54 feet would be exact i think dont take my word for it.


5 0
3 years ago
Read 2 more answers
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