Please, answer the question: if there is no association between the categorical variables, which of the following is true? a) The observed counts in the two-way table should be close to the expected points. b) The observed counts in the two-way table will be different from the expected points. c) The chi-square statistic will have a large value and the observed counts in a two-way table will be very different from the expected points. d) The chi-square statistic will have a large value.