Use the cumulative relative frequency graph to answer the questions below. a) California, with a median household income of $57,445 is at what percentile? b) What is the 25th percentile for this distribution? What is another name for this value? c) Where is the graph the steepest? What does this indicate about the distribution? The following cumulative relative frequency plot shows the age of people enrolled in school in 1996. 1) What is the median age of school enrollment in 1996? 2) What is the interquartile range of school enrollment in 1996? 3) At or below what age is the bottom 10% of school enrollment in 1996? 4) At or above what age is the top 20% of school enrollment in 1996? The following ogive shows the grade point average (GPA) for students at a certain school. 5) What is the median GPA? 6) What is the IQR of GPA? 7) What GPA is at the 85th percentile? 8) What does the steepness of the line imply? 9) What does it mean if the line is horizontal between two points? Read 89-91 What is a z-score? How do you calculate a
Use the cumulative relative frequency graph to answer the questions below. a) California, with a median household income of $57,445 is at what percentile? b) What is the 25th percentile for this distribution? What is another name for this value? c) Where is the graph the steepest? What does this indicate about the distribution? The following cumulative relative frequency plot shows the age of people enrolled in school in 1996. 1) What is the median age of school enrollment in 1996? 2) What is the interquartile range of school enrollment in 1996? 3) At or below what age is the bottom 10% of school enrollment in 1996? 4) At or above what age is the top 20% of school enrollment in 1996? The following ogive shows the grade point average (GPA) for students at a certain school. 5) What is the median GPA? 6) What is the IQR of GPA? 7) What GPA is at the 85th percentile? 8) What does the steepness of the line imply? 9) What does it mean if the line is horizontal between two points? Read 89-91 What is a z-score? How do you calculate a
Chapter_2_Notes_Student.docx