For a sample of n = 30 scores, a score that is 6 points above the mean has a z-score of z = 1.50. What is the sample standard de
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Answer:
Step-by-step explanation:
Angles in a triangle add up to 180°
Angles in a straight line add up to 180°
Answer:
For this case we can use the probability mass function and we got:
Step-by-step explanation:
Previous concepts
A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.
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".
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
Solution to the problem
Let X the random variable of interest, on this case we now that:
For this case we can use the probability mass function and we got:
The first thing you should do is to determine all the zeros, and you will have 7, -11, 2 + 6i, 2 - 6i.
After that you have to <span>subtract and (x) from every each zero that you have above, which means
</span>
<span>And the last step is to multiply them together, and that's all you need!
</span>
<span>I am pretty sure that everything hase become clear! Regards.</span>
After that you have to <span>subtract and (x) from every each zero that you have above, which means
</span>
<span>And the last step is to multiply them together, and that's all you need!
</span>
<span>I am pretty sure that everything hase become clear! Regards.</span>