Describe how the graph of y = 2x is the same and different from the graph of y = 2x - 7 explain or show your reasoning
2 answers:
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Answer:
a)
b) For this case the value with the higher probability is X=1, so then would be the most likely value.
c)
d)
e) For this case the expected value is given by:
The variance is given by:
And the deviation is:
Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Solution to the problem
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
Part a
Part b
For this case the value with the higher probability is X=1, so then would be the most likely value.
Part c
For this case we want this probability:
And we can find this probability like this:
Part d
For this case we want this probability:
And we can find this probability using the complement rule like this:
Part e
For this case the expected value is given by:
The variance is given by:
And the deviation is:
$812 billion will be spent at the restaurants if the trend continues.
Explanation
It is given that the amount spent on restaurants increase by 6% every year.
The amount spent on each of the following years can be determined by solving it using the method used to calculate compound interest.
Amount spent in 2004=$510 billion
Annual rate of interest=6%
we have to calculate the amount spent in 2012
number of years n=8
Amount spent=