Greetings :)
To find slope of two points we will need to use this equation: 
( 6 , -12 ) ( 15 , -3 )
Now let's replace the equation with the numbers. (it will be a fraction).
= 
The equation equals 9 over 9, which also equals 1.
The slope of the line is 1.
In a full 52-card deck, there are 4 kings and 4 3's, which do not overlap.
Therefore the total number of "successes" is 4+4=8 out of a 52-card deck.
=>
The probability of drawing a 3 or a king out of a 52-card deck is 8/52=2/13.
Answer:
<h2>
12</h2>
Solution,
Summation FX= 5+10+6+12+X
=33+x
N(total no.of items)=5
Now,
Mean= summation FX/N
or 9=33+X/5
or 9*5=33+X ( cross multiplication)
or 45=33+X
or -x=33-45
or -x=-12
X=12
Hope this helps...
Good luck on your assignment..
Answer:
n=56 is the correct answer
3×14=42 so,
4×14=56
:)
