Divide
2 answers:
Hello!!
Your answer will be is :
<h2><em>A. </em>
Convert the mixed numbers to improper fractions:
÷
Convert element to fraction:
÷
Apply the fraction rule: ÷
Cross - cancel common factor:
Convert improper fractions to mixed numbers:
Hope It Helps. . .
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Jace ^-^
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Answer:
a)
b)
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:
And 0 for other case. Let X the random variable that represent "life lengths of automobile tires of a certain brand" and we know that the distribution is given by:
The cumulative distribution function is given by:
Part a
We want to find this probability:
and for this case we can use the cumulative distribution function to find it like this:
Part b
For this case w want to find this probability
We have an important property on the exponential distribution called "Memoryless" property and says this:
On this case if we use this property we have this:
We can use the definition of the density function and find this probability: