What is a scatter plot?

Write the properties of Arithmetic mean Calculate the mean values of \( x \) and \( y \) for the following regression equations \( 8 x-10 y+66=0,40 x \quad 18 y=214 \) Write the normal equation of a second degree parabola Determine the spearman's rank correlation coeflicient for the following data \( n=9 \) and \( \sum d^{2}=176 \) List out the types of index numbers. 7. Determine the unweighted aggregates price index for the following data: \( \sum P_{1}=757 \) and \( \sum P_{0}=522 \) 5. What is cost of living index number? 6. Write down the formula for Time reversal and Factor reversal test.

2. Эмпирическая функция распределения.

Каковы ключевые элементы, необходимые для построения диаграммы рассеяния?

\( \left. \begin{array} { | c | c | c | c | c | c | } \hline x _ { i } & { 2 } & { 3 } & { 4 } & { 5 } & { 6 } \\ \hline n _ { i } & { 6 } & { 8 } & { 5 } & { 2 } & { 1 } \\ \hline \end{array} \right. \)

What is a scatter plot?