So 10 questions is 100% you missed 30% of the questions so you would do 100%-30% which is 70%
Your approach is the ideal approach...
<span>the bone of contention here is the value of T... </span>
<span>it simply depends on the definition given... some people use 360, others use 365... so it depends on which style your class (or book) uses... </span>
Let A= the sky is red at night
let B= the weather will be nice the next day
Since this is based on Conditional Probability,
P(B|A)
This is read: The probability that the weather iss nice the next day GIVEN the sky is red at night.
The answer is (4n-5)(n-3)
"45 years or over" includes all of the age groups "45-64", "65-74", and "75 or over". These age groups are disjoint (no individual can belong to more than one group), so the probability of picking someone that's at least of 45 years of age is the sum of the probabilities that a person belongs to any one of these groups. That would be
