What is the meaning for “mean” in math?

2 answers:

7 0

Basically, in math the "mean" is a set of numbers that you add, then take the sum and divide it by how many numbers are in that set. Here is an example: 6, 7, 4, 5, 8, 9, 3. The sum of the numbers in this set is 42. However, there are 7 numbers in this set. So basically what you would do is take the sum of the numbers, 42, and divide it by the amount of numbers that are in this particular set, 7. So, 42÷7=6. So now you have figured out that the mean is 6. I hope this could be helpful!

eimsori [14]3 years ago

6 0

Mean is average of the numbers

Ex.
7,3
7+3=10/2=5

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If i- -1, what is the value of ; 3? -1 O i 0 1 0 -

Whitepunk [10]

$i=\sqrt[]{-1}$ $\begin{gathered} i^2=(\sqrt[]{-1})^2 \\ i^2=-1 \end{gathered}$ $\begin{gathered} i^3=i^2\times i \\ i^3=-1\times i \\ i^3=-i \end{gathered}$

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11 months ago

Dr. Goodrich wanted to demonstrate that his tires were better than those of his competitor, Dr. Goodyear. From car registration

dem82 [27]

Answer:

Dependent Variable : Tire tread wear ; Independent Variable : Tire Brand ; Confounding Variable : Person driving

Step-by-step explanation:

Dependent Variable is the variable being affected by independent variable(s). Independent Variable(s) are the causal variable, bring change in dependent variable.

Goodrich wants to demonstrate that his tires were better than those of his competitor (Goodyear). For that, he has got conducted an independent research on tires worn quality - brand wise & various factors affecting wear

Dependent Variable is the 'Tire tread wear '.
Independent Variables determining it is primarily brand : Goodrich / Goodyear ; secondarily - price, mileage, time etc

Confounding variable is an extraneous influence variable; that changes the relationship between independent & dependent variable, outcome of experimental research.

In this case : Individuals driving the vehicles could be a confounding variable. A particular person could wear out tire more than another person.

6 0

3 years ago

HELP MEEEEEEEEEE Package A contains 3 birthday cards and 2 thank-you notes and costs $9.60. Package B contains 8 birthday cards

hodyreva [135]

Answer:

Each birthday card costs $2.2 ⇒ answer c

Step-by-step explanation:

* Lets explain how to solve the problem

- Package A contains 3 birthday cards and 2 thank-you notes

- It costs $9.60

- Package B contains 8 birthday cards and 6 thank-you notes