 Hello and welcome to the session. In this session we shall discuss the following question and the question says that classify the events from the probability line. The probabilities of the events p, q, r and s have been marked on the line. Look at the descriptions of four events below and match them up with the letters p, q, r and s on the line below. First part, there are two red and 15 blue balls in the jar. Michelle will draw a ball from the jar and it will be a red ball. Second, I will see King Henry VIII tonight. Third, Sheila will have her lunch today. Fourth, husband and wife go for a job interview. Wife will be selected for the job. Let us proceed to the solution. In this question we have to match the events on the probability line. The first part of the question is there are two red and 15 blue balls in the jar. Michelle will draw a ball from the jar and it will be a red ball. Now we know that in the jar there are only two red balls and 15 are blue balls. The chances of drawing red ball are less so it is an unlikely event. Its probability is near to zero and therefore it matches p. That is its probability is near to zero and therefore it matches p. The next event given in the question is I will see King Henry VIII tonight. We know that it is an impossible event so it cannot occur. Therefore its probability is zero. Therefore it matches s. The third part is Sheila will have her lunch today. Every person takes lunch so Sheila will also have lunch today. She will not have lunch only if she has some urgent work otherwise it is quite certain that she will have lunch. So we can say it is a likely event and its probability will be near to one. If its probability is near to one it matches r. Next we have husband and wife go for a job interview. Wife will be selected for the job. We know that in this case either husband is selected or wife is selected so both have equal chances of getting selected. So we can say wife is selected has probability one by two and it is neither likely nor unlikely event. Since it has probability one by two therefore it matches q which is the required answer. This completes our session hope you enjoyed this session.