1. Warm-ups September 19-23, 2011

2. Warm-up, Statistics Monday, September 19, 2011 Graph the distribution and calculate the mean, mode, and median of the following data set: {10 62335214 1092310215}

3. Warm-up, Statistics Tuesday, September 20, 2011 Enter the following data set in List 4 of your calculator, and use the calculator to calculate the mean, mode, and median of the following data set: {504583876410269983 10212335177889123 761611873549258 73211937248150100}

4. Warm-up, Statistics Wednesday, September 21, 2011 You have received partial data from a survey which classifies the respondents into children, adults, and senior citizens. You have relative frequencies of 36.85%, 53.45%, and 9.7% approximately, of population in each group, respectively. You also know that there are 104 senior citizens. Prepare a frequency table for the entire population, including the total of children, adults, and senior citizens.

5. Warm-up, Statistics Thursday, September 22, 2011 1.What percent of 4 is 2/3? 2.If 4 is 23% of X, what is X? 3.What is 62% of 5? 4.Fill in the blanks on the following table: 9 th grade10 th grade 11 th grade 12 th grade Total 27.8%26.37%23.92%21.9% 450

7. Warm-up, Statistics Friday, September 23, 2011 1.What percent of 18 is 2.95? 2.If 9 is 27.5% of X, what is X? 3.What is 36% of 73/13 4.A school has a population of 543 boys and 691 girls? Calculate the percentage of boys and of girls in the school population.