# Quick Answer: What Is This Symbol Μ?

## What does a backwards 4 mean?

These numbers were the inspiration of the stained glass.

The dominant motif is the reversed 4, which is the merchants’ mark that dates from the Middle Ages.

The vertical and horizontal bars form the Sign of the Cross; an apporopriate symbol for the Kirk of the Holy Rude..

## What does ψ mean in biology?

Water potentialDefinition. noun. The measure of the relative tendency of water to move from one area to another, and is commonly represented by the Greek letter Ψ (Psi).

## How do you insert mean in Word?

Tip 1: Insert a Mean SymbolPosition the cursor before X.Go to Insert tab and click Symbol button, choose More Symbols in the drop-down box.The Symbol dialog box will display, select Symbol in the box of Font. … Simply hit Insert, and you get a mean symbol for X as below.

## What does U mean in probability?

U(a,b) uniform distribution. equal probability in range a,b.

## What does the backwards 3 symbol mean in math?

Σ This symbol (called Sigma) means “sum up”

## What is C in statistics?

What is a C-Statistic? The concordance statistic is equal to the area under a ROC curve. The C-statistic (sometimes called the “concordance” statistic or C-index) is a measure of goodness of fit for binary outcomes in a logistic regression model.

## What is this symbol ψ?

Psi /ˈsaɪ/ (uppercase Ψ, lowercase ψ; Greek: ψι psi [ˈpsi]) is the 23rd letter of the Greek alphabet and has a numeric value of 700. In both Classical and Modern Greek, the letter indicates the combination /ps/ (as in English word “lapse”). … The classical Greek letter was adopted into the early Cyrillic alphabet as “Ѱ”.

## How do you type μ?

1) Press the “Alt” key on your keyboard, and do not let go. 2) While keep press “Alt”, on your keyboard type the number “230”, which is the number of the letter or symbol “µ” in ASCII table.

## What does μ mean in math?

The symbol ‘μ’ represents the population mean. The symbol ‘Σ Xi’ represents the sum of all scores present in the population (say, in this case) X1 X2 X3 and so on. The symbol ‘N’ represents the total number of individuals or cases in the population.

## What is the Sigma sign?

Sigma /ˈsɪɡmə/ (uppercase Σ, lowercase σ, lowercase in word-final position ς; Greek: σίγμα) is the eighteenth letter of the Greek alphabet. … In general mathematics, uppercase ∑ is used as an operator for summation.

## What is a backwards U in math?

What does the symbol ug (with the u ‘reversed’) stand for? … It stands for microgram as a part of the metric system. The “reverse u” is the Greek letter μ, which is the lowercase ‘m’. It is 1 millionth of a gram.

## What does P A upside down UB mean?

It means the Intersection of a set. For example, IF you have a set of even numbers and a set of odd numbers, the Union ‘U’ of these two sets would be ALL numbers. But, the Intersection (upside down U) would mean that NONE of the numbers in Evens are in common with any of the Odds in the second set.

## How do I type at symbol?

How To Get the @ Symbol on a Windows Laptop. On a laptop with a numeric keypad, press Ctrl + Alt + 2, or Alt + 64. On an English keyboard for the United States, press Shift + 2. On an English keyboard for the UK, use Shift + `.

## What does upside down a symbol mean?

Here are a couple of basics: 1. upside down A means “for all” 2. backward E means “there exists” 3. epsilon (looks like c with horizontal line in middle) means “an element of” or “in” of “belongs to” 4. backwards epsilon means “such that” 5.

## What does ψ mean in math?

Wave FunctionThe wave function Ψ is a mathematical expression. … It carries crucial information about the electron it is associated with: from the wave function we obtain the electron’s energy, angular momentum, and orbital orientation in the shape of the quantum numbers n, l, and ml.

## How do I write Mew in Word?

In the Press new shortcut key field, type the key combination that you want to use for the symbol or character (e.g., for symbol μ used Alt+M) and click Assign.

## What is M in Greek?

The symbol for “micro” as a prefix to scientific units, since “m” was already used for “milli” and “M” for “Mega”, the greek m was used, as in mm for micrometers.