Use binomial theorem with N=5, p=0.70
(a) all five resolved
(b) at least one not resolved
i.e. not all five
(c) none resolved
(d) at least one resolved
i.e. not none resolved
A little suggest for follow-ups to my responses.
Start with a follow-up to the original post. If your patience runs out, then start a new post with or without the recipient's name under "school subject".
Assuming you have no problem with parts (a) and (c), parts (b) and (d) are simply the complement to the preceding part.
P(X≤4) means P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4).
However, we make use of the fact that the sum of probabilities of all possible events add up to 1, or
P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)=1 (all possible events), so by transposition, we obtain:
as was done in (b) and (d).
Answer this Question
math-please help! - The number of complaints received by a business bureau can ...
Statistics - A consumer protection group reports that 25% of 5-lb bags of sugar ...
statistics - Suppose the number of customer complaints per day on the morning ...
marketing - can you help me understand these better please o Consumer ...
statistics - A researcher is interested in whether herbal remedies are effective...
science - h t t p: / / tinypic . co m/r/f2vw1w/3 In the link above (take out the...
statistics - this is to mathmate...this is jimmy and you answered by questions ...
stats help! - suppose the number of customer complaints per day on the morning ...
History - According to L. M. Bowers, what are some of the complaints made by the...
Statistics and Probability - it has been estimated that about 30% of frozen ...