Question

2000 coins are throw simultaneously how many thems are likely to fall their head upward​

Answer 1

Answer:

The expected number of heads [in the technical sense of "mathematical expectation"] is the probability of heads times the number of tosses, or (1/2)*2,000, or 1,000. The actual number of heads will cluster symmetrically around this number; it is unlikely that the number of actual heads will exactly equal 1,000 in any given experiment, but with 2,000 tosses the odds of varying from 50/50 are lower than they are if there were a lower number (say, only 2) of tosses.