The following table relates to Stock ABC’s return: Demand for Company ABC’s products Probability of this demand occurring Rate of return if this demand occurs Weak 0.15 (50%) Below average 0.175 (5%) Average 0.35 15% Above average 0.175 26% Strong 0.15 60% 1.0 Required: Calculate Stock ABC’s expected return, standard deviation, and coefficient of variation.
Compound Probability
Compound probability can be defined as the probability of the two events which are independent. It can be defined as the multiplication of the probability of two events that are not dependent.
Tree diagram
Probability theory is a branch of mathematics that deals with the subject of probability. Although there are many different concepts of probability, probability theory expresses the definition mathematically through a series of axioms. Usually, these axioms express probability in terms of a probability space, which assigns a measure with values ranging from 0 to 1 to a set of outcomes known as the sample space. An event is a subset of these outcomes that is described.
Conditional Probability
By definition, the term probability is expressed as a part of mathematics where the chance of an event that may either occur or not is evaluated and expressed in numerical terms. The range of the value within which probability can be expressed is between 0 and 1. The higher the chance of an event occurring, the closer is its value to be 1. If the probability of an event is 1, it means that the event will happen under all considered circumstances. Similarly, if the probability is exactly 0, then no matter the situation, the event will never occur.
The following table relates to Stock ABC’s return:
Demand for Company
ABC’s products
Probability of this
demand occurring
Rate of return if this
demand occurs
Weak 0.15 (50%)
Below average 0.175 (5%)
Average 0.35 15%
Above average 0.175 26%
Strong 0.15 60%
1.0
Required:
Calculate Stock ABC’s expected return, standard deviation, and coefficient of variation.
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