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

On an examination the average grade was 74 and the standard deviation was 7 . If \( 10 \% \) of the class are given A's and the distribution of grades is to follow a normal distribution. Then the lowest possible A and highest possible B if z.10=1.28 is: \( \begin{array}{ll}\text { (a) } 83 \text { and } 82 & \text { (b) } 84 \text { and } 83 \\ \text { (c) } 85 \text { and } 84 & \text { (d) } 82 \text { and } 81\end{array} \)

What is a scatter plot?

What is a scatter plot?

Условие задания: стандартное отклонение равно 6, средний квадрат значений равен 98,7. Найди среднеє арифметическое. Рассмотри два варианта по значению средне арифметического с округлением до десятых. Наименьшее среднее арифметическое:

Min bagi satu set data yang mengandungi tujuh integer \( 28,27,16,30 \), The mean of a set of data of seven integers \( 28,27,16,30, k, 26 \) and \( k \) - (a) Cari nilai \( k \). Find the value of \( k \). (b) Nyatakan kuartil pertama bagi set data tersebut. State the first quartile of the set of data. Cari nombor yang dikeluarkan itu. One number is removed from the set of data and the mean remains Find the number removed.