________ is a probability sampling technique in which the sample is chosen by selecting a random starting point and then picking every ith element in succession from the sampling frame

Extortion of private persons is commonly referred to as blackmail

Indicate whether the statement is true or false

Assume that an investment is forecasted to produce the following returns: a 20% probability of a

12% return; a 50% probability of a 16% return; and a 30% probability of a 19% return. What is the standard deviation of return for this investment? A) 5.89% B) 16.1% C) 15.7% D) 2.43%