Use the below dataset to create a new one based on the following criteria:

1. Impute the missing values in all variables

2. Print the output dataset then.

Gender	Age	Height	Weight
F	23	600	101
M	35	69	133
f	.	55	320
F	65	40	155
.	50	70	71
m	55	.	74
M	24	15	150