3. In a study done in Michigan, it was determined 38 (out of 62) poor children who attended pre-school needed social services later in life compared to 49 (out of 61) poor children who did not attend preschool. Does this study provide significant evidence that preschool reduces the need for social services later in life?
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.
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3. In a study done in Michigan, it was determined 38 (out of 62) poor children who attended
pre-school needed social services later in life compared to 49 (out of 61) poor children
who did not attend preschool.
Does this study provide significant evidence that preschool reduces the need for social
services later in life?
4. A drug company creates a medicine designed to prevent colds, and states that it is equally
effective for men and women. To test this claim, they give the medicine to 100 men and
200 women.
At the end of the study, 33 men and 95 women caught a cold. Can we say that the drug is
equally effective for men and women? (Use a ="
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