Answer:
(-4, 0)
Step-by-step explanation:
(-4, 0)
Answer: 
<u>Step-by-Step Explanation:</u>
KCFmeans: Keep, Change, Flip
- Change: the sign <em>from division to multiplication</em>
- Flip: the second fraction
÷ 
= 
<em>KCF is applied here!</em>
= 
=
Answer:
84
Step-by-step explanation:
Combinations
nCr
n (objects) = 9
r (sample) = 3
9C3
n! / r! (n – r)!
9! / 3! (9 – 3)!=
9! / (3! * 6!)=
9*8*7*6!/ (3! * 6!)=
6! cancels out
9*8*7/3*2*1=
3*4*7=
12*7=
84
Let's differentiate the terms statistic and parameter. Statistic is a branch of mathematics that involves the treatment of various data through collection, preparation, analysis and interpretation. A parameter is a unit of measure which is an element of the system.
Since 78% is the percentage of the whole data, this is a statistic. A parameter, for instance, is the 2,890 readers :)
The answer is A.
I hope you clearly understood my explanation :)
