What is the iqr of 23,27,42,45,49,53,62,71,76,80A. 28B. 29C. 57D. 80
2 answers:
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Answer:
The correct option is B.
Step-by-step explanation:
The given expression is
Use the property of radicals.
Use the property of exponent.
Therefore option B is correct.
Answer:
18.75% probability that more than 3 of them have a high school diploma
Step-by-step explanation:
For each adult worker, there are only two possible outcomes. Either they have a high school diploma, or they do not. The adults are chosen at random, which means that the probability of an adult having a high school diploma is independent from other adults. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
It is known that 50% of adult workers have a high school diploma.
This means that
If a random sample of 5 adult workers is selected, what is the probability that more than 3 of them have a high school diploma?
This is P(X > 3) when
So
In which
18.75% probability that more than 3 of them have a high school diploma
