Answer:
stack isn't a fit out of these
Using the hypergeometric distribution, it is found that the probability is 0.845 = 84.5%.
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- The patients are chosen from the sample without replacement, which means that the hypergeometric distribution is used to solve this question.
Hypergeometric distribution:
The probability of x successes is given by:

The parameters are:
- x is the number of successes.
- N is the size of the population.
- n is the size of the sample.
- k is the total number of desired outcomes.
Combination formula:
is the number of different combinations of x objects from a set of n elements, given as:

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- 56074 patients, thus

- Sample of 40, thus,

- 235 left against medical advice, thus,
.
The probability that none left against medical advice is P(X = 0), so:


The probability is 0.845 = 84.5%.
A similar problem is given at brainly.com/question/24008577
Answer:
The sum of the complex numbers is
.
Explanation:
Let be
and
, the sum of the complex number can be found by algebraic means. That is:
1)
,
Given.
2)
Definition of addition.
3)
Commutative and associative properties.
4)
Definition of addition/Distributive property.
5)
Definition of addition/Commutative property/Result.
The sum of the complex numbers is
.