Answer:
See Explanation
Step-by-step explanation:
Required
Determine any equation where n = 6
Add n to both sides
<em></em>
<em> ----- This is 1 equation</em>
Multiply both sides by n
<em></em>
<em> ----- This is another</em>
<em></em>
Add 5n to both sides
<em></em>
<em> ---- This is another</em>
Subtract 10 from both sides
<em></em>
<em> --- This is another</em>
<em>You can have as many equations as possible</em>
Answer:
Bottom left
Step-by-step explanation:
It does not make a straight line
Answer:
see attached
Step-by-step explanation:
The function that tells you the number of dollars you spend on a given number of pounds creates graphs with the coordinates (pounds, dollars).
If you want 1 pound to correspond to G dollars, then a point on the graph will be ...
(1, G)
Looks like a badly encoded/decoded symbol. It's supposed to be a minus sign, so you're asked to find the expectation of 2<em>X </em>² - <em>Y</em>.
If you don't know how <em>X</em> or <em>Y</em> are distributed, but you know E[<em>X</em> ²] and E[<em>Y</em>], then it's as simple as distributing the expectation over the sum:
E[2<em>X </em>² - <em>Y</em>] = 2 E[<em>X </em>²] - E[<em>Y</em>]
Or, if you're given the expectation and variance of <em>X</em>, you have
Var[<em>X</em>] = E[<em>X</em> ²] - E[<em>X</em>]²
→ E[2<em>X </em>² - <em>Y</em>] = 2 (Var[<em>X</em>] + E[<em>X</em>]²) - E[<em>Y</em>]
Otherwise, you may be given the density function, or joint density, in which case you can determine the expectations by computing an integral or sum.
