Answer:
- <u>Option</u><u> </u><u><em>A</em></u><em>. If percentages are used, the sum should be a 100%. If proportions are used, the sum should be 1.</em>
Explanation:
The <em>relative frequency</em> can be measured as a ratio (proportion) or as a percentage.
As a ratio, the relative frequency is the number of times that the desired outcome is observed (either theoretically or experimentally) divided by the total number of possible outcomes (theoretically) or observed (experimentally).
As a<em> percentage</em>, the relative frequency is the ratio multiplied by 100.
This shows it mathematically:
- relative frequency of event 1 = frequency of event 1 / number of events
- relative frequency of event 2 = frequency of event 2/number of events
- relative frequency of event n = freqquency of event n/number of events
- Total relative frequency = sum of of relative frequencies
= sum of all (n) frequencies / number of events =
= number of events / number of events = 1
As a percentage, total relative frequency = 1 × 100 = 100
Answer:
The answer is 
or 1.666...
Step-by-step explanation:
Reorganize the problem
÷ 
=
Reciprocal the Multiplier
÷ = x 
= or 
or 1 
Hope this helps!
Answer:
= 16/3 × -24/5
= (16 × -24) / (3 × 5)
= -384/15
= -128/5
<span>= -25 3/5
Answer = A</span>
We know that
The difference of two squares<span> is a squared number subtracted from another squared number. Every difference of squares may be factored according to the identity</span>
<span>
(A</span>²-B²)=(A+B)*(A-B)
<span>so
the answer is
</span><span>49m2 − 81n4
</span>49m2 − 81n4=(7m+9n²)*(7m-9n²)
" the difference " means subtract
the difference between 5 and twice a number x is 1
5 - 2x = 1 <== ur equation
-2x = 1 - 5
-2x = - 4
x = -4/-2
x = 2 <== ur solution
