QUESTION 9

1. Given the following scatter diagram , the sample correlation coefficient r:
2. Has a positive linear correlation
3. Has a negative linear correlation.
4. Has little or no correlation.
5. Looks close to + 1.00

QUESTION 11

1. The Sarasota Police department collected data on the number of car accidents ( X ) that occur each day on a certain stretch of route 41.From this data, they derived the probability distribution shown in the tablebelow.
2. X
3. P(X)
4. 0
5. 0.80
6. 1
7. 0.15
8. 2
9. 0.05
10. What is the expected mean (average) number of accidents that occur each day?
11. 0.50
12. 0.25
13. 0.33
14. 1.00

.Ill Claro } 2: 08 PM "0" 100% { ( post test ( Recuperado automatica ...\\ QUESTION 9 1 . Given the following scatter diagram , the sample correlation coefficient r :` Has a positive linear correlation* Has a negative linear correlation . Has little or no correlation . . Looks close to + 1.00 QUESTION 11 1 . The Sarasota Police department collected data on the number of car accidents ( X ) that occur each day on a certain stretch of route 41 . From this data , they derived the probability distribution shown in the table below . P ( X ) 0. 80 0. 15 0. 05 2 . What is the expected mean ( average ) number of accidents that occur each day ?' $ 0.50 0 . 25 0 . 33 1.00