Answer: sigma is used for measuring Population Standard Deviation.
Step-by-step explanation:
The lower case Greek letter 'sigma' is denoted by the symbol ( 
).
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 
.
Formula for Population Standard deviation ( ) is = 
,
where 
= each value from our list of data
= 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.
Hi there!
<u>Here is the step by step explanation into solving this :</u>
4 × (2² + 5)² ÷ 3 - 1
Start by solving the inside of the parentheses
2² = 2 × 2 = 4
4 + 5 = 9
Distribute the "²" to the whole parentheses
9² = 9 × 9 = 81
4 × 81 ÷ 3 - 1
Do the multiplication, then the division and lastly the subtraction
4 × 81 = 324
324 ÷ 3 = 108
108 - 1 = 107
The answer is : 107
There you go! I really hope this helped, if there's anything just let me know! :)
The answer would be 150
To solve this do 50x30 and you would get 150
Answer:
Step-by-step explanation:the half of 32 is 16 so 16 times 2 =-=
1. Slope intercept form. First find two points to get slope: (0,-3) and (-3,-4). Slope is
(-4 - -3)/(-3 - 0)= 1/3
Use one of the points of (x,y) to solve for b
Y=1/3x + b
-3 = 1/3(0) + b
-3 = b so your slope intercept equation is
Y = 1/3x - 3
2. Rate of Change is slope. Your points are (0,10) and (24,6) so slope is (6-10)/(24-0)
= - 1/6 which means that for each 1 unit increase in x, y decreases by 1/6.
3. Standard form is ax + by =c
Notice it is the same line as in the first graph so it's the same equation
y = 1/3x - 3
First, you cannot have fractions, so you have to multiply the equation by 3 to get rid of the 1/3.
3y= x - 9. Now move the x over:
-x + 3y = - 9. Now get rid of the negative value on x by multiplying the entire equation by -1:
x - 3y = 9
