The extremes in the proportion 3/4=15/20 are
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Answer:
The value is
Step-by-step explanation:
From the question we are told that
The probability of passing the test is
The sample size is n = 10
Generally the distribution of the comprehensive testing of equipment follows a binomial distribution
i.e
and the probability distribution function for binomial distribution is
Here C stands for combination hence we are going to be making use of the combination function in our calculators
Generally the probability that at least 9 pass the test is mathematically represented as
=>
=>
=>