use properties of determinants to evaluate the given determinant by inspection. Explain your reasoning.

Frequency + Histograms Saturday, August 8,1:00 PM Audio recording started: 2:14 PM Thursday, August 20, 2015 Statistics: Collecting data Analysis Presentation Interpretation Data: Qualitative (numeric descriptions such as the numbers basketball players wear, non numeric) Quantitative (numeric, how much or how many) Frequency distribution: Mathematics Achievement Test scores for a sample of 50 6th graders. [A list of like 50 numbers was on the board] Example: Class width = (max - min)/(number of classes) The number of classes has to be given. The Class width in this example turned out to be 9.5 rounded to 10. Class width = 10 Score Frequency Relative Frequency 40-49 IIIII 5 0.10 50-59 IIIIIIIIII 10 0.20 60-69 IIIIIIIIIIIIIII 15 0.30 70-79 IIIIIIIIIII12 0.24 80-89 IIIIIII 7 0.14 90-99 I 1 0.02 1. How many students answered fewer than 50 questions correctly 10% of students or 5 students. 2. How many students answered 80 or more questions correctly 16% or students or 8 students. Cumulative Frequency: Test scores Cumulative Freq. Less or equal to …. * I got lost here, it's difficult to see and hear. HW: Draw a histogram. Use any methods. He'll ask you how you did it next time.