dez73
06.11.2019 •
Mathematics
Garrett and erin are borrowing $170,000 to purchase a new home. they have been approved for a 30-year loan with an interest rate of 5.75%. what will be their monthly payment?
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Ответ:
Step-by-step explanation:
Since, the periodic payment of a loan,
Where, P.V. is the principal amount,
r is the rate per period,
n is the number of periods,
Given,
P.V. = $ 170,000,
Annual rate = 5.75 % = 0.0575,
Thus, the rate per month,
Also, time = 30 years,
So, the number of months in 30 years,
n = 360 ( 1 year =12 months )
Hence, the monthly payment of the loan is,
Ответ:
a) What is the probability that the duration of a particular rainfall event at this location is at least 2 hours?
We want this probability"
At most 3 hours?
b) What is the probability that rainfall duration exceeds the mean value by more than 2 standard deviations?
What is the probability that it is less than the mean value by more than one standard deviation?
Step-by-step explanation:
Previous concepts
The exponential distribution is "the probability distribution of the time between events in a Poisson process (a process in which events occur continuously and independently at a constant average rate). It is a particular case of the gamma distribution". The probability density function is given by:
The cumulative distribution for this function is given by:
We know the value for the mean on this case we have that :
Solution to the problem
Part a
What is the probability that the duration of a particular rainfall event at this location is at least 2 hours?
We want this probability"
At most 3 hours?
Part b
What is the probability that rainfall duration exceeds the mean value by more than 2 standard deviations?
The variance for the esponential distribution is given by:
And the deviation would be:
And the mean is given by
Two deviations correspond to 5.540, so we want this probability:
What is the probability that it is less than the mean value by more than one standard deviation?
For this case we want this probablity: