5. For each of the scenarios below, which of the five choices would be the best approach to address A. Histogram the stated goal (write in the letter of your choice in the space provided)? C. Boxplot B. Numerical descriptive statistics (e.g., mean, standard deviation) (a) A middle school principal is given the results of the school's students' scores on a standardized assessment in a form that reports what percent of items each student got correct. The principal needs to report how much variance the students? scores have to the local school board. (b ) A middle school principal is given the results of the school's students' scores on a standardized assessment in a form that reports what percent of items each student got correct. The researcher would like to examine the distribution of student scores. (c) A questionnaire consisting of twenty items was administered to a group of children asking about their beliefs concerning mathematics. The twenty items were then averaged to produce a single score for each student. In preparation for hypothesis testing, the researcher would like to determine whether there are any potential outlier scores in the dataset. 6. Probabilities of the Normal Distribution: Let z be a standard normal variable (# = 0, o = 1). (a) P(-1.00 1.60) = (c) P(z 1.50) = (d) Find the value K such that P(z K) + P(Z