the simple intrest earned on $500,000 invested for eighteen months is $90,000 what was the interest rate?
2 answers:
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Answer:
75.8% probability that a 31 square foot metal sheet has at least 4 defects.
Step-by-step explanation:
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 time interval.
In this problem, we have that:
3 defects per 18 square feet.
So for 31 square feet, we have to solve a rule of three
3 defects - 18 square feet
x defects - 31 square feet
So
Assuming a Poisson distribution, find the probability that a 31 square foot metal sheet has at least 4 defects.
Either it has three or less defects, or it has at least 4 defects. The sum of the probabilities of these events is decimal 1.
So
We want
So
In which
So
Finally
75.8% probability that a 31 square foot metal sheet has at least 4 defects.
Answer:
I think No
Explanation:
We say two figures are similar if they have the same shape, but not necessarily the same size. <u>If they also have the same size</u>, we say they are congruent.
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