Каковы ключевые элементы, необходимые для построения диаграммы рассеяния?

20. Aşağıdakilerden hangisi bir popülasyondan yerine tekrar koymak suretiyle yeterince büyük ve bağımsız rastgele örneklerin alınması durumunda, örnek ortalamalarının dağılımııı yaklaşık olarak normal dağılacağını ifade eder? A) Normal dağıım B) Pisagor teoremi C) Merkezî limit teoremi D) Güven aralığı E) Büyük sayılar kanunun

What is a scatter plot?

A) mathematics test was given to 50 girls and 75 boys. The girls (8) made an average of 76 with an standard deviation of 6 and the boys made an average of 82 with an standard deviation of 2 . Determine whether there is any difference between the performance of boys and girls. Out of a sample of 1000 persons, 800 persons were found to be (7) coffee drinkers. Subsequently, the excise duty on coffee was increased Affer the increase in excise duty of coffee seeds, 800 people were found to take coffee out of a sample 1200 Determine whether there is any significant decrease in the cansumption of coffee after the increase in excise duty

c) Find the Yule-Walker equation for the \( \mathrm{AR}(2) \) process \[ X_{t}=\frac{1}{3} X_{t-1}+\frac{2}{9} X_{t-2}+e_{t}, e_{t} \sim W N\left(0, \sigma_{e}^{2}\right) \]

Define un diagrama de dispersión y describe su propósito en la estadística.