Stat
Exercise1:
For the following set of data
9 9 2 6 8 7 7 8 0 7
1- Calculate the 3 measures of central tendency
2- Calculate the 4 measures od variation
3- Is the set having high, medium or low variation
Exercise 2:
We have the following data
|
|
Grades |
TOTAL |
|||
|
|
Low |
medium |
High |
|
|
|
Gender |
Male |
5 |
8 |
2 |
15 |
|
|
Female |
3 |
4 |
3 |
10 |
|
TOTAL |
8 |
12 |
5 |
25 |
If we pick a person randomly
1- What is the probability that he will be male?
2- What is the probability that he will have high grade?
3- Knowing the person is female, what is the probability that her grade will be medium?
4- What is the probability of being female or having high grade?