<h3>Answer:</h3>
- A — 1
- B — ∑[k=0..2] 15Ck(.24^k)(.76^(15-k))
- D — 12 and 3.1
- A — 0.1091
- B — 0.83 ...
<h3>Explanation:</h3>
1. The probability is 0.52 that the officer will pull over a driver and then the expected number more. So, if x is the expected number of drivers pulled over until one is not texting, we have ...
... x = 0.52(1+x)
... 0.48x = 0.52
... x = 0.52/0.48 = 13/12 = 1 1/12 ≈ 1 . . . . matches selection A
(<em>Comment on this result</em>: I find it interesting that these are the odds in favor of finding a driver who texts. That is, if the probability of texting is 0.98, the odds are 49:1 that a driver will be texting, and the expected number of pull-overs is 49.)
2. The probability of at most 2 being cured is the probability of 0, 1, or 2 being cured. You need to add up those probabilities. The sum in answer selection B does that.
3. The mean of a binomial distribution is ...
... μx = np = 60·0.2 = 12
... σx = √(np(1-p)) = √(12·0.8) ≈ 3.0984
These match selection D.
4. 20C14(0.8^14)(0.2^6) = 38760·.043980·0.000064 ≈ 0.109100 . . . matches A
5. mean(x) = 0.94; mean(x^2) = 1.58, so ...
... σx = √(1.58 -0.94²) ≈ 0.83 . . . . matches selection B
The Anglo-Saxons were a cultural group who inhabited England in the Early Middle Ages. They traced their origins to the 5th century settlement of incomers to Britain, who migrated to the island from the North Sea coastlands of mainland Europe. Some sources say that the Saxon warriors were invited to come, to the area now know as England, to help keep out invaders from Scotland and Ireland. Another reason for coming may have been because their land often flooded and it was difficult to grow crops, so they were looking for new places to settle down and farm.
Yes I believe so, the OSHA rules under employer responsibilities imply nothing against that.
Answer:
This is a definite false.
Explanation:
We know that the once place is equal (0 = 0)
We know that the tenth place is equal (0 = 0)
However, 1 < 0 is false.
Since 1 < 0 is false, the whole statement given is false.
Hoped this helped.
Answer:
It relies on assumptions about the context.
Explanation:
Took the exam. It is the right answer!
Top-down is how we percieve and process from experience.
