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?

In which of the following case is the level of significance divided into two tails equally. \( \begin{array}{lll}\text { (a) A manufacturer claims that his } & \text { (b) A milk bottling plant is expected to } \\ \text { products last for more than } 24 \text { hours. } & \text { fill } 250 \mathrm{ml} \text { of liquid in one bottle. } \\ \text { (c) A manufacturer claims that defects in } & \text { (d) A school claims that their passing } \\ \text { its production are less than } 5 \% & & \text { ratio is } 75 \% \text { or more }\end{array} \)

What is a scatter plot?

2. Эмпирическая функция распределения.

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