Emilia takes 80 minutes to type 24 pages. Jamie takes 30 minutes to type 18 pages. If they work together, how long will it take
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Answer:
And replacing using the mass function we got:
And adding the values we got:
Step-by-step explanation:
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
We want to find the following probability:
And replacing using the mass function we got:
And adding the values we got: