Question 12
Ten coins were tossed together a number of times. The distribution of the number of heads obtained is given in the following table:
Number of Heads |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
Frequency |
2 |
7 |
23 |
36 |
11 |
61 |
100 |
12 |
8 |
5 |
3 |
Calculate, correct to three decimal places, the:
- mean number of heads.
- probability of getting an even number of heads.
- probability of getting an odd number of heads.
Observation
