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Home Question Bank Math Statistics Archive 2024 December 14

Statistics Questions from Dec 14,2024

Browse the Statistics Q&A Archive for Dec 14,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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\begin{tabular}{l} Question 9 (Multiple Choice Worth 10 points) \\ ( 01.06 MC ) \\ The heights of basketball players, in inches, on two different teams is given in the data. \\ Champs: \( \{66,63,65,64,58,68,47,50,65,60,62,64,60,65,55\} \) \\ All Stars: \( \{73,62,60,63,72,65,69,68,71,66,70,67,60,70,71\} \) \\ Using the correct measure of center, which team typically has the tallest players? \\ The All Stars, with a mean of approximately 67.1 inches \\ The Champs, with a mean of approximately 60.8 inches \\ The All Stars, with a median of 68 inches \\ The Champs, with a median of 63 inches \\ \hline\end{tabular} Question 4 (Multiple Choice Worth 10 points) (01.01 LC) A data set lists the heights of 12 th grade students. Which of the following methods could be used to display the data, and why? Histogram, because the data is categorical Histogram, because the data is numerical Bar chart, because the data is categorical Because the data is numerical The unemployment rate in a city is \( 15 \% \). If 6 people from the city are sampled at rar Carry your intermediate computations to at least four decimal places, and round your (If necessary, consult a list of formulas.) b) 954 2. ¿De cuántas maneras puede escogerse un comité compuesto de 3 hombres y 2 mujeres de un grupo de 7 hombres y 5 mujeres? \( \begin{array}{ll}\text { a) } 320 & \text { c] } 210 \\ \text { b) } 350 & \text { d] } 624\end{array} \) (a) The researcher wants to use fat content to predict calories. What is the explanatory variable? A. \( \frac{\text { Calories }}{\text { Fat content }} \) B. Calories C. Fat content D. Fat content Define un diagrama de dispersión y describe su propósito en la estadística. What is a scatter plot? اشرح كيف يمكن استخدام Scatter Plot لتحديد العلاقة بين متغيرين. Twenty values of \( x \) are summarised by \( \Sigma(x-1)^{2}=132 \) and \( \Sigma(x-1)=44 \). Eighty values of \( y \) are summarised by \( \Sigma(y+1)^{2}=17704 \) and \( \Sigma(y+1)=1184 \). a Show that \( \Sigma x=64 \) and that \( \Sigma r^{2}=240 \). For a frequency distribution table, it is found that \( \sum f x=234 \) and \( \sum f=8 \) Then mean of that data is
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