# statistics , question 5, grade 10

5)

Shadia listed her scores in 6 math quizzesÂ out of 10 as follows:

8,8,4,x,7,y

- Knowing that her best score was x and her worst one was y;

1)

re-arrange the given data in the increasing order.

2)

- Calculate x and y s.t. the
**range**is 8 and the**mean**is 6.5. - Find the
**mode**and the**median** - Calculate the
**mean deviation**of this data set. - Shadia wants to get an average of 8/10 , could she reach her goal after the next new quiz? Justify.
- Shadia belongs to a class of 24 girls; later, a new student just joined the class and while arranged in the increasing order according to their length , Shadia occupied the middle place among the students of her class, How many students are taller than Shadia?