A study measures the relationship between confidence in financial knowledge and risk of Alzheimer's disease. The study found a correlation coefficient of -0.9043 and the scatter plot of the data appeared to be approximately linear. Which of the statements below are true? Select all that apply. This type of study is not appropriate for these types of variables. In general, as confidence in financial knowledge increases, the risk of Alzheimer's disease decreases. The correlation is not strong, so a small change in the financial knowledge confidence will not necessarily impact the risk of Alzheimer's disease. The correlation is strong, so even a small change in the financial knowledge confidence will impact the risk of Alzheimer's disease. In general, as financial knowledge confidence increases, the risk of Alzheimer's disease increases