The answer is 319. (638/2=319) square means doubled so you want to find what was double to get the above. So you then would divide by 2 and get your answer.
Answer:
Using the pmf we can find the individual probabilities like this:
And replacing we got:

Step-by-step explanation:
Previous concepts
Let X the random variable that represent the number of people that will become sereiosly ill in two years. We know that
The probability mass function for the random variable is given by:
And f(x)=0 for other case.
For this case the value for
would be:

For this distribution the expected value is the same parameter
On this case we are interested on the probability of having at least two chocolate chips, and using the complement rule we have this:
Using the pmf we can find the individual probabilities like this:
And replacing we got:

Answer:
32) 11, rational
33) 0.7, rational
34) approximately 3.9, irrational
35) approximately 31.6, irrational
The percentage that is saved upon parking for 4 hours is 25%.
Parking for 4 hours should warrant $8, but the new deal deducts $2 from the original rate. $2 ÷ $8 = 0.25 or 25%.
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