10 6 fair coins are tossed. Find a number k such that the chance that the number of hands is between XXXXXXXXXX – I and 500,000 + k is approximately 0.96.

Description
10
6
fair coins are tossed. Find a number k such that the chance that the number
of hands is between 500 000 – I and 500,000 + k is approximately 0.96.
Solution:
It is 500 000 – k and 500 000 + k, of course, and “hands” can be replaced with
“heads”. Also, the number of heads will be nearly 0.96 out of 10
6
,...