# What is the shape of the distribution what is the iqr

• Notes
• apiccirello
• 10

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What is the shape of the distribution? What is the IQR? What is the Q1? What is the Q3? What is the IQR? What is the upper fence? What is the lower fence? Are there any outliers? Example 3: Given the following types of data and sample sizes, list the measure of central tendency you would use and explain why? Sample of 50 Sample of 200 Hair color Height Weight Parent’s Income Number of Siblings Age Does sample size affect your decision?

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Chapter 1: Exploring Data Example 4: Consumer Reports did a study of ice cream bars (sigh, only vanilla flavored) in their August 1989 issue. Twenty-seven bars having a taste-test rating of at least “fair” were listed, and calories per bar was included. Calories vary quite a bit partly because bars are not of uniform size. Just how many calories should an ice cream bar contain? 342 377 319 353 295 234 294 286 377 182 310 439 111 201 182 197 209 147 190 151 131 151 a) Construct a boxplot of the data b) Determine if there are any outliers. Example 5: The weights of 20 randomly selected juniors at MSHS are recorded below: 121 126 130 132 134 137 141 144 148 205 125 128 131 133 135 139 141 147 153 213 a) Construct a boxplot of the data b) Determine if there are any outliers. Example 6: Using the data from example #5 a) Change the weight from pounds to kilograms and add 2 kg (special uniform) b) Get summary statistics and compare with example 5 c) Draw a box plot Homework: Day 1: pg 74 – 75: problems 27-31 Day 2: pg 82: prob 33; pg 89 probs 40, 41; pg 97 probs 45, 46
Chapter 1: Exploring Data Chapter 1: Review Objectives: Students will be able to: Summarize the chapter Define the vocabulary used Know and be able to discuss all sectional and chapter knowledge objectives Be able to do all sectional and chapter construction objectives Successfully answer any of the review exercises Vocabulary: None new Summary: Homework: pg 106 – 111: probs 59, 62, 63, 64, 66, 70 Plot your data Dotplot, Stemplot, Histogram Interpret what you see Shape, Outliers, Center, Spread Choose numerical summary x and s, Five-Number Summary
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• Fall '12
• SonjaCox

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