Answer:
And we can find this probability with the following difference:
And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the number of gallons of a population, and for this case we know the distribution for X is given by:
Where
and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability with the following difference:
And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.
The answer should be 5 or -5
Answer: yes they have a proportional relationship
Step-by-step explanation:
Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.
Step one : let us test say c=1
F=9/5*1+32
F=9/5+32
F=1.8+32
F=33.8
Say c=2
F=9/5*2+32
F=9/10+32
F=0.9+32
F=32.9
Observe that as c increases
F reduces Hence they have a proportional relationship
-<em><u>samuelonum1</u></em>-
Not my answer/ please give brainlist
Answer:
<h2>a = 1</h2>
Step-by-step explanation:

The surface are is about 161.6 square centimeters.