1. The two-way frequency table below shows how many students passed their driving test as well as the number who took a preparatory class. Find the probability that a student passed the test, given that he or she took the class.
Answer by JKismyhusbandbae: The sample space for the probability is the number of students who took the class. Divide the number of students who took the class and passed the test by the number of students who took the class.
Test statistics is used in hypothesis testing to find the conclusion. Test statistics are T-values which are used in testing a hypothesis and deciding whether to accept or reject the null hypothesis.
Test statistics can be calculated with the following formula:
