1. Which of the following best describes the difference between interval and ordinal measurement scales?

Which of the following best describes the difference between interval and ordinal measurement scales?

Both provide order to the values, but only one of them provides truly numerical values

Both provide numerical values, but only one of them has a "true 0"

Both provide quantitative information, but only one of them provides discrete values

Both provide categorical data, but only one of them has logical order to the categories

2 2 points For a game of chance, a player has to pull 2 marbles out of a bag. There are 7 green marbles, 7 orange marbles, and 7 purple marbles. They have already drawn their first marble. The chances of drawing a purple on the second draw are 7/21. Which of the following do we know for sure about this situation? C The game uses sampling with replacement The game uses sampling without replacement The first marble was green The first marble was orange The second marble will be green The second marble will be orange The second marble will be purpleAs part of a survey, students were asked which member of their family they were closest to, and given a list of options such as mom, dad, sister, brother, grandma, grandpa, etc.. The data for this question can be best described as which of the following? ratio interval nominal O ordinal4 1 point A researcher is studying how encouragement affects people's willingness to keep trying on a difficult task. All participants are given an extremely difficult task to do. Half the participants are assigned to a condition in which they get no feedback at all. The other half are assigned to a condition in which, no matter how they're doing, every two minutes, the researcher says something encouraging to them. The researcher times each participant to see how long they'll keep trying on the task before they give up. After the experiment, the researcher realizes that they may have made an error. There were multiple versions of the difficult task, and they didn't keep track of which participants were given which version. Although the versions are supposed to be pretty similar, they were concerned that the task version might also have impacted how long participants kept trying. For this question, match the variable described to the type of variable it represents. whether or not participants got encouraging feedback lurking variable which version of the task participants were given dependent variable how long participants keep trying on the task independent variable5 3 points 30 25 % Frequency 15 10 -1 Difference Score Examine the graph above. Assume that the data shown are discrete, whole-number, numerical data. Which of the following do we know to be true about this graph and the data it represents? Check all that apply. O This graph is a histogarm This graph is a line graph This graph is a frequency polygon The minimum score in this dataset was in the -3.5 to -2.5 range O The minimum score in this dataset was exactly -3 there was 1 score of 25% O 25% of the difference scores had a value of 1 O 25 of the difference scores had a value of 1 1 point Use the following table. Calculate the value that should replace the ? in the table. Round to the nearest hundredth if necessary. Cumulative Love of Pizza Frequency Cumulative Frequency Relative Frequency Relative Frequency Low 5 Medium 7 7 High 16 NAhaven't had it 2 Type your answer... 1 point 5? Which of the following types of sampling involves splitting all members of the population into groups, randomly selecting a certain number of groups. then using all individuals in those groups as part of the sample? cluster sampling simpie random sampling stratied sampling convenience sampling 1 point What of the belowr is NOT one of the responsibilities of an Institutional Review Board? Identifying problems with the overall research plan before the research takes place Approving the informed consent documents that will be used for a study Making sure that there is a plan in place to monitor participant safety in risky studies Gathering data for the study and storing it in a secure manner n 1 point A student collected the following data about their classmates in their research methods class. Out of the 30 students in the class: 7 students said the class was more difcult than their other classes 11 students said the class was about the same difficulty as their other classes 12 students said the class was easier than their other classes Which of the following are acceptable ways to display these data? Check all that apply. a pie chart a Pareto chart a bar graph atable