 Hello and welcome to the session. In this session we are going to discuss the following question and the question says that two data sets are shown below. Which of these data sets consist of data at the interval level and at the ratio level? Give reasons. We know that data at the interval level of measurement can be ordered and meaningful differences between data entries can be calculated and data at the ratio level of measurement are similar to data at the interval level. A ratio of two data values can be formed so that one data value can be meaningfully expressed as a multiple of another. With this key idea we move on to the solution. In this question both of the data sets contain quantitative data. Now consider the years of the Chicago team football series victories. It makes sense to find differences between specific years. For example, the year difference between the Chicago team first and last series victories will be given by 2000-1920 which is equal to 80 years. But it does not make sense to say that one year is a multiple of another. So these data are at the interval level. However in the second table using the home run total you can find differences and write ratios. From the data you can see that Texas hit 62 more home runs than Chicago hit. We can see that their difference is of 62 runs. Also here we see that Oakland hit about two times as many home runs as Boston hit. So these data are at the ratio level thus we can say that these data are at the interval level and here these data are at the ratio level Which is the required answer. This completes our session. Hope you enjoyed this session.