The formula for compound interest is:
Given data:
a. After ten years, that is t = 10 years, the amount in the account will be
b. After twenty years, that is t = 20 years, the amount in the account will be:
c. The time it takes for Harry's initial account value to double will be:
Therefore, the time it takes Harry's initial account to double is approximately 11 years
Answer:
0.713 = 71.3% probability that the county office will get more than 0 calls in a 15 minute period.
Step-by-step explanation:
We have the mean during a time-period, which means that the Poisson distribution is used to solve this question.
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given interval.
A county office gets an average of 10 calls in a 2 hour time period.
10 calls each 120 minutes, which means that the mean for n minutes is:
15 minute period:
This means that
What is the probability that the county office will get more than 0 calls in a 15 minute period?
This is:
In which
So
0.713 = 71.3% probability that the county office will get more than 0 calls in a 15 minute period.
For me, I just plugged in different numbers to the width telling me whether it needs to be higher or lower, and I came to a conclusion of 12.
I'm confused as to why there's a random "10" but the answer is actually pretty simple. Insert (11-210) into the problems.
Basically substitute (11-210) into the numbers with the x variable.
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i swear this answer is 100% false
hahahahha