Please help me answering these four questions.
1. A PIE CHART is a circle and a circle has 360 degrees (360o). If a family's annual expenses were $ 15,000 for groceries, $ 4,000 for fuel, and $ 24,000 for rent, what PERCENT of the circle area (showing the sum of all 3 expenses) is each expense? THEN, for the pie chart, what are the three WEDGE ANGLES (in degrees) ? (Google "protractor")
2. ELEVEN DATA x-Values: 6, 1, 7, 13, 14, 9, 8, 31, 10 , 9, 15 What are the MEAN and STANDARD DEVIATION (HAND CALCULATE - NOT SOFTWARE (BUT YOU CAN USE SOFTWARE TO CHECK YOUR ANSWERS)?
3. Same data set as in (#3) What are the Q1, Q2, Q3 and IQR ?
4. DRAW A BOX PLOT and show where the values in #3 and #4 are AND tell which statistics are NOT shown in a box plot (if any). Can you think of anything else that a BOX PLOT does NOT tell us about our data?