Use the probability distribution to complete parts​ (a) and​ (b) below. Activities Probability 0 0.061 1 0.124 2 0.166 3 0.167 4 0.203 5 0.119 6 0.116 7 0.044 ​(a) Find the​ mean, variance, and...

Use the probability distribution to complete parts​ (a) and​ (b) below.

Activities    Probability
0                  0.061
1                  0.124
2                  0.166
3                   0.167
4                   0.203
5                    0.119
6                    0.116
7                    0.044

​(a) Find the​ mean, variance, and standard deviation of the probability distribution