pencil, red pen, highlighter, notebook, calculator 5/6/13 Have out: Bellwork: Determine the function f(x) that makes each graph. x -7 3 -10 y x = -4 5 -5 x y -2 8 x y y x -7 -9 3 1 y = -1 vertex: (1, –4) inflection point: locator: (–4, –1) vertex: (–2, 1) (3, 4) +1 +1 +1 +2 +1 +1 +1 +1 total: +1 +1 +1

It’s time to grade the STT!!! Clear your desk except for a red pen.

Unit 12 Stats Test Date: Monday (4/23) or Tuesday (4/24) Bring: Pencils, erasers, highlighter, 3x5 notecard Graphing calculators will be provided. 3x5 notecard: Worth 5 assignment points.

Old bellwork

pencil, red pen, highlighter, notebook, graphing calculator 4/29/10 Have out: The following scores where earned on a test: Bellwork: 75, 82, 85, 74, 66, 64, 95, 30, 61, 81, 96, 95, 53, 64, 79, 44 a) Make a sorted list. b) Compute the mean, median, and mode. (You can use your calculator, but show your work!) c) Identify the 5 number summary. d) Compute the IQR and 1.5 IQR. e) Use the 1.5 IQR criterion, determine the cut off for lower and upper outliers. Identify any outliers. f) Make a modified box–and–whiskers plot.

Bellwork: The following scores where earned on a test: 75, 82, 85, 74, 66, 64, 95, 30, 61, 81, 96, 95, 53, 64, 79, 44 a) Make a sorted list. 30, 44, 53, 61, 64, 64, 66, 74, 75, 79, 81, 82, 85, 95, 95, 96 b) Compute the mean, median, and mode. median = mode: bimodal  64, 95

c) Identify the 5 number summary. ______, ______ Min Q1 Med (Q2) Q3 Max 30 62.5 74.5 83.5 96 d) Compute the IQR and 1.5 IQR. IQR = Q3 – Q1 1.5 IQR = 1.5 (21) IQR = 83.5 – 62.5 = 31.5 IQR = 21 e) Use the 1.5 IQR criterion, determine the cut off for lower and upper outliers. Identify any outliers. lower bound = Q1 – 1.5 IQR Upper bound = Q3 + 1.5 IQR = 62.5 – 31.5 = 83.5 + 31.5 = 31 = 115 30 is an outlier. No upper outliers.

f) Make a modified box–and–whiskers plot. 30 44 62.5 74.5 83.5 96 Q1 Med Q3 100 90 80 70 60 50 40 30 20 scores