Consider the following three descriptions of outcomes after ...

[TVarnum]

Consider the following three descriptions of outcomes after tossing 6 coins: all six heads, 3 heads and 3 tails (in any order), and 4 heads and 2 tails (in any order). Which of the following represents the ordering of these three descriptions in order of highest to lowest probability?
 a. 3 heads and 3 tails, all six heads, 4 heads and 2 tails
  b. 3 heads and 3 tails, 4 heads and 2 tails, all six heads
  c. All three equally likely.
  d. None of the above.

Question 2

A 95 confidence interval for p the proportion of supermarket customers who do not buy house-brand products at all is calculated and turns out to be: (0.18, 0.46). For each of the following statements determine whether it is true or false. The standard error of the sample proportion is equal to 0.0714.
 a. True
  b. False

[ilianabrrr]

Answer to Question 1

B

Questions 112 and 113: It seems that every year we hear about a train derailment. Discussions about the safety of train travel are initiated each time. Suppose there have been nine fatal train derailments over the past 10 years. However, each year, 5 million train trips depart (this does not include subway travel).

Answer to Question 2

A

[TVarnum]

TYSM

[daiying98]

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