Consider two possible investments with the same expected rate of return. Over the past several ...

Consider two possible investments with the same expected rate of return.
 
  Over the past several months, investment A has had an average closing price of 14.00 and a standard deviation of 4.00. Investment B has had an average closing price of 58.00 and a standard deviation of 15.00. The market value of investment A fluctuates relatively more than investment B.

Q. 2

A true-false quiz consists of ten questions. If you guess the answer to each question, what is the probability of getting all ten questions correct?
 
  A) 0.0010
  B) 0.0439
  C) 0.2051
  D) 0.2461

Q. 3

If two events A and B are mutually exclusive, what would be the addition rule?
 
  A) P(A  B) = P(A) + P(B)
  B) P(A  B) = P(A) + P(B)
  C) P(A  B) = P(A)
  D) P(A  B) = P(A) - P(B)

Q. 4

In developing an interval estimate for a population mean, the population standard deviation  is assumed to be 8. The interval estimate is 45.82  2.36. What will be the interval estimate for the population mean if  is equal to 16?
 
  A) 45.82  4.72
  B) 45.82  2.36
  C) 45.82  9.44
  D) 45.82  5.56

Q. 5

A variable measured at the interval or ratio level can have more than one arithmetic mean.
 
  Indicate whether the statement is true or false