Jordan is playing a video game with zombies and is collecting data on scores for each round played. Jordan creates a scatter plo
2 answers:
You might be interested in
<u>Answer:</u>
○
<u>Explanation:</u>
<h3>What is a quadratic equation?</h3>A quadratic equation is an algebraic equation where the highest power of is 2. The general form of a quadratic equation is as follows:
,
where <em>a</em>, <em>b</em>, and <em>c</em> represent known constants, and is the unknown.
In this question, if you take a look at the second option, you will see that it is possible to rearrange the equation to make it look the general form:
⇒
Therefore, this equation is quadratic.
The other three options are not quadratic equations because none of them have an term in them.
the picture in the attached figure
we know that
The probability of an event is the ratio of the size of the event space to the size of the sample space.
The size of the sample space is the total number of possible outcomes
The event space is the number of outcomes in the event you are interested in.
so
P=size of the event space/size of the sample space
step 1
find the probability that the person is over 40 years
size of the sample size=255
size of the event space=85
P=85/255------> P=1/3
step 2
find the probability that they drink root beer
size of the sample size=255
size of the event space=75
P=75/255------> P=5/17
step 3
find the probability that the person is over 40 years of age or that they drink root beer
so
P=(1/3)+(5/17)-----> P=(17*1+3*5)/51------> P=32/51-----> 0.6275----> 62.75%
therefore
the answer is
32/51 or 62.75%
