D Question 21 0.5 pts Jake took a 20-question multiple choice quiz. Each question had five choices. Jake did not study and guessed on each question. Let X = the number of questions Jake guessed correctly. What is the random variable? Whether or not Jake got a question correct. O The number of questions Jake answered correctly on the quiz. O The number of questions on the quiz. The number of choices on each question. D Question 22 0.5 pts Is the random variable continuous or discrete? O continuous O discrete D Question 23 1 pts Jake took a 20-question multiple choice quiz. Each question had five choices. Jake did not study and guessed on each question. Let X = the number of questions Jake guessed correctly. To determine if the random variable has a binomial distribution, four conditions must be satisfied. The four conditions are listed below. For each, check if it is met. There are exactly two categories for each question (correct or incorrect), one of which must happen. There are a fixed number of trials (i.e. questions). The probability of a "success" on each trial is the same for all trials. That is, the probability of answering a question correctly is the same for all questions. The trials are independent. That is, whether Jake answers one question correctly is not dependent on whether Jake answers any other question correctly.Question 19 0.5 pts An experiment on mung beans was performed to investigate the environmental effects of salinity and water temperature on sprouting. Forty beans were randomly allocated to each of 36 petri dishes that were subject to one of four levels of Salinity (0, 4, 8, and 12 parts per million (ppm)) and one of three Temperatures (32, 34, or 36 degrees Celsius). After 48 hours, the biomass in grams was measured for each petri dish. Below is an incomplete Analysis of Variance table. Use it to answer the questions that follow. Sum of Degrees of Source of variation Mean squares F-statistic p-value squares freedom Salinity 12.1567 0.05 O No, since the p-value for the interaction term is > 0.05 Question 20 0.5 pts Jake took a 20-question multiple choice quiz. Each question had five choices. Jake did not study and guessed on each question. Let X = the number of questions Jake guessed correctly. What is the variable of interest in this scenario? O Whether or not Jake got a question correct. The number of questions Jake answered correctly on the quiz. O The number of questions on the quiz. O The number of choices on each