The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1800 and the standard deviation is $55. 1635 1690 1745 1800 1855 1910 1965 Distribution of Prices a What is the approximate percentage of buyers who paid between $1745 and $1855? What is the approximate percentage of buyers who paid between $1800 and $1910? % What is the approximate percentage of buyers who paid less than $1635? 1% What is the approximate percentage of buyers who paid more than $1910? % What is the approximate percentage of buyers who paid between $1745 and $1800? What is the approximate percentage of buyers who paid between $1800 and $1965? %

Using the table below creating a 3-year and 4-year moving average and predict sales for 2008. Find the mean absolute deviation (MAD) for both the 3 and 4 year moving averages.( MAD= Error Year 2001 2002 2003 2004 2005 2006 2007 2008 n Sales 2030 2155 2382 2412 2606 2892 3018 3-Year Moving Average MAD 3-Year Moving Average MAD 4-Year Moving Average Absolute Error 3-year Moving Average 4-Year Moving Average Absolute Error 4-Year Moving Average

The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $2000 and the standard deviation is $80 1760 1840 1920 2000 2080 2160 2240 Distribution of Prices What is the approximate percentage of buyers who paid between $2000 and S2160? 9% What is the approximate percentage of buyers who paid between $1920 and $2080? 0 0 What is the approximate percentage of buyers who paid between $2000 and S2080? 0 0 What is the approximate percentage of buyers who paid more than $2160 0 What is the approximate percentage of buyers who paid berween $2000 and $2240? 0 What is the approximate percentage of buyers m ho paid less than $1760?

Itemized Charitable Contributions The average charitable contribution itemized per income tax return in Pennsylvania is $792. Suppose that the distribution of contributions is normal with a standard deviation of $105. Find the limits for the middle 42% of contributions. Use a graphing calculator and round the answers to two decimal places. The limits for the middle 42% of contributions are $ and $ %24