There are 50 total students in the 12th grade at bayside high. thirty three students are enrolled in ap calculus and twenty seve
n are enrolled in ap english. three students are enrolled in neither ap class. how many students are enrolled in only ap calculus?
1 answer:
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Answer:
a)
b)
c)
Step-by-step explanation:
1) Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
2) Solution to the problem
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:
Part a
Part b
Part c