Answer:
The expected number of seat belt wearing drivers among the five cars is 3.75, using the expected value of a binomial experiment.
Step-by-step explanation:
For each driver, there are only two possible outcomes. Either they wear their seatbelts, or they do not. This means that we solve this problem using concepts of the binomial probability distribution.
Binomial probability disitribution.
Probability of exactly x sucesses on n repeated trials, with p probability.
Has an expected value of:
.
(a) Describe how you would simulate the number of seat belt wearing drivers among the five cars.
You would simulate this number finding the expected value of the binomial experiment.
There are 5 cars, so .
75% of all drivers wear their seat belts, so .
So the expected number of seat belt wearing drivers among the five cars is:
The expected number of seat belt wearing drivers among the five cars is 3.75, using the expected value of a binomial experiment.
Answer:
The Commutative Property is a property that states the order of the numbers in addition and multiplication don't matter. 2+3+7 = 7+2+3
Step-by-step explanation:
7(c+3)+ -4(3c-2)
<em>Distribute the 7 and the -4 to each of their parentheses.</em>
7c+21-12c+8
<em>You can use the Commutative Property to move the terms to places where they can be easily simplified.</em>
7c-12c+21+8
<em>Simplify.</em>
-5c+29
Answer:
x=17
Step-by-step explanation:
we know that AD is 90 so you have to subtract 73 to 90
90-73=17 x is a reflection of FD so the value of x is x=17
Answer: 9.5km
Step-by-step explanation:
3:10, it’s basically just the same thing but ratios can be written more than one way.