In a survey of National Hockey League players, 75 players were asked how many teeth they had lost due to contact during games. Survey results are as follows:

Missing Teeth x                     No. of Players f(x)

0……………………………………..             1

1……………………………………..             4

2……………………………………..             8

3……………………………………..            13

4……………………………………..            22

5……………………………………..            18

6……………………………………..             9

Total = 75

a. Show the frequency bar chart for the data.

b. Compute the mean, the variance and the standard deviation for the data. 

c. Identify the median and the mode.