8. Las calificaciones de 50 estudiantes en Matemáticas han sido las siguientes: \( \begin{array}{l}5,2,4,9,7,4,5,6,5,7,7,5,5,2,10,5,6,5,4,5,8,8,4,0, \\ 8,4,8,6,6,3,6,7,6,6,7,6,7,3,5,6,9,6,1,4,6,3,5,5,6\end{array} \) 7.

The first quartile of the values \( 42,35,63,7,28,21,4 \) is \( (28,7), 14,63) \) Which of the following is divisible by 2,3 and \( 5 ? \) \( (4,532,1.245,3.000,8,840) \)

4. В 1 классе 20 мальчика, во 2 - 17 , в 3 - 16, в 4 - 19 . Постройте круговую диаграмму количества мальчиков в начальной школе по классам.

(b) Estimate the percentage of amounts that were greater than \( \$ 48.60 \). Round the answer to one decimal place. Approximately \( \square \% \) of the amounts were greater than \( \$ 48.60 \).

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

Lunch break: In a recent survey of 675 working Americans ages \( 25-34 \), the average weekly amount spent on lunch as \( \$ 43.34 \) with standard deviation \( \$ 2.63 \). The weekly amounts are approximately bell-shaped. Part: \( 0 / 3 \) Part 1 of 3 (a) Estimate the percentage of amounts that were less than \( \$ 40.71 \). Round the answer to one decimal place. Approximately