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U.S. quarters minted before 1965, including the Standing Liberty, weigh 6.25 grams. A heavily worn coin might weigh slightly less.
yes over time it will become rusted
650 kg (1433 lb) less than quarter of a tonne
The probability of heads is 0.5 or 1/2. This is wrong, the chances of a penny landing heads up is less than 0.5 because the cast in Lincoln's head weighs more than the tails side of the peeny.
penny, nickel, dime, quarter. That wasn't so difficult now, was it?
define success and failure. Heads? or tails. What number or set of numbers do you want on the die? A compound event could be heads for the coin and all 3 die are less than 4.
Let's take the simple case of tossing a coin. You may end up with the Head facing up or the Tail facing up. If the coin is perfectly balanced then in the long run (say a 1000 tosses) you will get about 500 heads and 500 tails. You will never get 1000 heads or 1000 tails. In this simple experiment the probability of heads is defined as 500/1000 and the proability of tails is defined as 500/1000 where the numerator represnets in each case a "tagged" event and the denominator denotes the "toal" events. Thus in the case above the occurrence of Head or Tail can never be 1000, it will always be less the 1000 (the total attempts in the experiment). Hence 500/1000 (ratio of "tagged" event to the total eveents) which is defined as the probability can never be 1. In the extreme case where the coin is weighted (a counterfeit)such that you always get heads facing up then out of 1000 tries you will get 1000 heads and zero tails. In this case the probability of heads is 1 and the probability of tails is zero. I hope this explanation helps. Thus true probablity of an event lies between 0 and 1, both inclusive.
More than breed, body type is what will be similar. A 15.2 Quarter Horse will weigh about the same as a Paint, Arabian, Appaloosa, crossbreed, or Morgan of the same height. Horse's bone structure will also play a part. A 15.2 Quarter Horse may weigh less than a 15.2 Shire or other heavier draft breeds.
The heads side of a penny holds more water because it has a slightly raised edge that creates a small barrier preventing the water from spilling over the sides. The tails side is flat and the water can easily spill off the edges.
If its Tails as in Miles Prower-- Tails was born naturally with two tails, so the answer is no. Tails will only and always have two tails no more or less, he won't and cannot grow another one.
Less. The more times the coin is tossed, the more likely it will reflect the actual odds of .5 heads and .5 tails.
(1/2)^3 = 1/8 In general it is like this (p/n)^t. Where n is the number of equally possible outcomes (2 since you can get heads or tails), p is the number of desired outcomes (1 since you only are concerned with heads), and t is the number of trials (3 in this case). One caveat to this is that it does not factor in initial conditions. Although very slight you have a better chance of getting heads when the coin is flipped from a position where heads is up. You have less chance of getting heads when the coin is flipped from the tails-up position. This effect is decreased the more the coin flips before landing.