(20 pts, pls answer these correctly, if possible ^^;;)
2 answers:
Answer:
1. always
2.never
3.sometimes
4.always
5.sometimes
6.always
Step-by-step explanation:
It is clear from the given number line, that is a negative integer and
is a positive integer.
1. It is always true because addition is always commutative property.
2. It is never positive because product of two different sign is always negative.
3.dividing two integer with unlike sign may result in any integer
4.when a positive quantity is reduced from a negative quantity, the result is always negative.
5.division of two unlike integers may result the same,if they both have the same value
6.If an opposite of a positive integer is added to that positive integer itself, the result is is always 0.
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Answer:
And we can use the probability mas function and we got:
Step-by-step explanation:
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".
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:
And we want this probability:
And we can use the probability mas function and we got: