A stock has the following returns over three consecutive years: -26%, 80%, and 86%. What is the arithmetic average?

A stock has the following returns over three consecutive years: -2%, 1%, and 121%. What is the geometric average?

A stock has the following returns over three consecutive years: 143%, 95%, and 70%. What is the appropriate average?

A stock has the following returns over three consecutive years: 19%, 64%, and -23%. What is the standard deviation of these returns?

Which of the following is true about the Efficient Market Hypothesis, EMH?

options:

	There is ample evidence to confirm the strong-form EMH.
	The semi-strong form EMH contains the weak-form EMH.
	It is well-established (in academic research) that you can generate additional returns using price and volume pattern data.
	Inside information is reflected in prices under the semi-strong form EMH.