Answer:
Step-by-step explanation:
Add and
on both sides.
Add or subtract like terms.
Divide on both sides.
is the independent variable now.
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Answer:
0.0105 = 1.05% probability that no more than 3 of the entry forms will include an order.
Step-by-step explanation:
For each entry form, there are only two possible outcomes. Either it includes an order, or it does not. The probability of an entry including an order is independent of any other entry, which means that the binomial probability distribution is used 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.
The Magazine Mass Marketing Company has received 16 entries in its latest sweepstakes.
This means that
They know that the probability of receiving a magazine subscription order with an entry form is 0.5.
This means that
What is the probability that no more than 3 of the entry forms will include an order?
At most 3 including an order, which is:
In which
Then
0.0105 = 1.05% probability that no more than 3 of the entry forms will include an order.