Answer:
x=4,y=8
Step-by-step explanation:
sin∠SRT = sin∠TSV,
SO ,
=80,x=
;
In the same way:
sin∠RSV = sin∠RTS,
SO ，
=320,y=8
PLS PLS HELP !!! I need it :(
2 answers:
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Answer:
32.33% probability of having at least 3 erros in an hour.
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.
The mean number of errors is 2 per hour.
This means that
(a) What is the probability of having at least 3 errors in an hour?
Either you have 2 or less errors in an hour, or we have at least 3 errors. The sum of the probabilities of these events is decimal 1. So
We want
So
In which
32.33% probability of having at least 3 erros in an hour.