Answer:
Expected value =0.9
Standard deviation = 0.4359
Step-by-step explanation:
Let's use the formula to find expected value or mean.
Expected value =Σ x *P(x)
x 0 1 2
P(x) ) .15 .8 .05
So, expected value = (0)(0.15) +1(0.8)+2(0.05)
= 0 +0.8 +0.1
=0.9
Expected value =0.9
Now, let's find standard deviation
x

0
=0.1215
1
=0.008
2
=0.0605
Now, add the last column together and then take square root to find standard deviation.
Standard deviation of the distribution =
Simplify it, so standard deviation =0.4358898...
Round the answer to nearest four decimal places
Standard deviation = 0.4359
Answer: 0.074
Step-by-step explanation:
It’s simple actually! Just do 0.72/9.72 and it gives you 0.074.
Hope this helps!
Answer: the answer is c
Step-by-step explanation:
Answer:
<u>4.63 as simplified fraction is</u>
<u>463/100</u>
Step-by-step explanation:
<em>4.63 as a fraction in simplest form</em>
<em>To convert 4.63 to fraction, follow these steps:</em>
<em />
<em>First write down the decimal number divided by 1 like this:</em>
<em />
<em>4.63/1</em>
<em />
<em>As we have 2 digits after the decimal point in the numerator, we need to multiply both the numerator and denominator by 10² = 100, so that there is no decimal point in the numerator</em>
<em />
<u><em>4.63 × 100</em></u>
<em> 1 × 100</em>
<em> = </em>
<em>463/100</em>
<em />
<em>As the numerator is greater than the denominator, we have an improper fraction, so we can also express 4.63 as a mixed number, thus 463/100 is equal:</em>
<em />
<em>4 63/100</em>
Selection A is appropriate.
Adjacent sides are neither perpendicular nor the same length, but the figure is a parallelogram.