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Home Question Bank Math Statistics Archive 2024 December 04

Statistics Questions from Dec 04,2024

Browse the Statistics Q&A Archive for Dec 04,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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ما هو الرسم البياني Scatter Plot وكيف يُستخدم لتمثيل البيانات؟ A survey asks 192 people "What beverage do you drink in the morning?", and offers choices: - Coffee only - Tea only - Both tea and coffee - Neither tea nor coffee Suppose 32 report tea only, 48 report coffee only, and 36 report both. How many people drink tea in the morning? How many people drink coffee in the morning? Create a venn diagram with this information and submit it. Choose File No file chosen Question Help: Video Check Answer Use the technique of linear regression to find the line of best fit for the given points. Round any intermediate calculations to no less than six decimal places, and round the coefficients to two decimal places. Answer \( (1,10),(2,6),(3,3),(4,10),(5,4),(6,3),(7,2) \) What is the mean of the prime numbers greater than 30 but less than 45 ? If a scatter plot shows points that are closely clustered together, what can you infer about the correlation between the variables? 4. O diretor de uma escola, na qual estăo ma- triculados 280 meninos e 320 meninas, de- sejoso de conhecer as condiçőes de vida extraescolar de seus alunos e não dispondo de tempo para entrevistar todas as famílias, resolveu fazer um levantamento, por amos- tragem, em 10\% dessa clientela. Obtenha, para esse diretor, os elementos componen- tes da amostra. 4) In a telephone poll of 25 people, 9 people said they like shopping. What is the ratio of the number of people who do not like shopping to the number of people who like shopping? \[ 16: 9 \] \( 50: 16 \) Find the mean time of Bert's last five downhill skiing runs: 98 sec , \( 90 \mathrm{sec}, 102 \mathrm{sec}, 97 \mathrm{sec} \), and 113 sec . Uma escola de \( 1^{10} \) grau abriga 124 alunos. Obtenha uma amostra representativa cor- respondendo a \( 15 \% \) da população. Sugestão: use a \( 8^{a}, 9^{a} \) e \( 10^{a} \) colunas, a partir da \( 1^{\text {a }} \) linha, da Tabela de Números Aleatórios (de cima para baixo). Question 20 (5 points) Which informational subject would benefit the most from a column graph? B) A sequence of historical events C) One company's sales over a decade D) Comparison of different companies' sales over several years
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