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Home Question Bank Math Statistics Archive 2025 January 03

Statistics Questions from Jan 03,2025

Browse the Statistics Q&A Archive for Jan 03,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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What is a scatter plot? *4. Evaluate For 5 minutes every day at 10 a.m., James counted the number of birds that came to the bird feeder outside his window. Over 10 days, he collected this data: \( 3,5,4,5,5,4,6,5,6,6 \). a. Display the data with a line plot. b. Find the range and the mean, median, and mode of the data. c. James said, "Most often, there were 5 birds that came to the bird feeder." Which measure of central tendency did he use? Identify any outlier. Determine the median of the data, Determine the interquartile range of the data. \( \mathrm{Ma} \alpha \times-\mathrm{Min} \) Draw a box and whisker diagram using the number line provided in the anower book. Comment on the skewness of the data by using the box and whisker diagram. 13. Out of 5 mathematician and 7 statisticians, a committee consisting of 2 mathematicians and statisticians is to be formed. In how many ways can this be done if A) any mathematician and any statistician can be included? B) one particular statistician must be in the committee? 11. The mean and standard deviation of a sample of 100 observations were found to be 40 and 11 respectively. On checking it was found that two observations were wrongly taken as 23 and 15 in place of 43 and 18. Calculate the correct mean and standard deviation. What is a scatter plot? How do you identify the relationship between two variables in a scatter plot? Defina um diagrama de dispersão e explique sua utilidade na análise de dados. تعریف یک پراکندگی نموداری چیست و چگونه می‌توان از آن استفاده کرد؟ Uma empresa está analisando o desempenho de vendas de seus produtos em cinco regiōes diferentes. Os dados a seguir representam as vendas mensais (em unidades) para cada regiāo nos últimos cinco meses: - Regiāo A: \( 100,120,110,130,125 \) - Regiāo B: \( 90,85,95,100,105 \) - Regiāo C: \( 200,195,210,205,215 \) - Regiāo D: 50, 60, 55, 65,70 - Regiāo E: \( 150,140,145,155,160 \) A empresa deseja identificar a regiāo com a maior mediana de vendas mensais. Com base nos dados fornecidos, qual das regiōes apresenta a maior mediana? a. Regiāo A b. Regiāo B c. Regiāo C d. Regiāo D e. Regiāo E
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