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Name: Hour: Date: Lesson 7.3: Day 1: How tall are we? As fou Mttish 3 Sores How tall are high schoo! seniors in Michigan? Attached are the heights of all 50 high school seniors at a small high school in the upper peninsula. Fopu\ aha Distvibuthian 2 ___¢,. ad cdothsltos ® wo OS 160 170 180 «190, Height (cm) 4. Make a guess at the mean of all 50 students. Make another guess of the standard deviation of all 50 students. M=\S.9e6 =A 2. Select a random sample of 5 students and calculate the mean height for the sample. Repeat for 4 samples total. Heights: g= Heights: x= Heights: k= Heights: R= 3. Add your sample means to the dotplot on the board, Sketch it below. Samplinsy disribuho £X 140 150 160 170 Height (cm) 3 Describe the sha enter, and variability of this dotplot GASH PSRise er sughlg Boman Shige peak oF Ty oy PUR g. Center = 90% leon: ~ oO os Voviabi ity = Mun Sruller, Nayar nem 3 oO. On 3 © ¢ . Compare the two dotplots above. How are the dotplots similar? How are they . , diffe it? metr Se Anaped of Worn ore simiar (roughly sym ic) & Carriers Ore orn of Wem a TheStetsMedic - sampling disiibution 1s much te Wor aloe. ~ . 
