How do you identify the relationship between two variables in a scatter plot?

Каковы ключевые элементы, необходимые для построения диаграммы рассеяния?

2. Эмпирическая функция распределения.

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.

What is a scatter plot?

If a scatter plot shows points that are closely clustered together, what can you infer about the correlation between the variables?