

Question



Scores
1
2
3
4
5
6


Frequency
2
5
13
11
9
10



The table shows the distribution of outcomes when a die is thrown 50 times. Calculate the :
(a) Mean deviation of the distribution ; (b) probability that a score selected at random is at least a 4.





Scores
1
2
3
4
5
6


Frequency
2
5
13
11
9
10


