The standard nickel has the Jefferson Memorial on the back of it. There have been a number of new nickels issued with other pictures.
There are eight possible results when flipping three coins (eliminating the highly unlikely scenario of one or more coins landing on their edge): Dime - Heads / Nickel - Heads / Penny - Heads Dime - Heads / Nickel - Heads / Penny - Tails Dime - Heads / Nickel - Tails / Penny - Heads Dime - Heads / Nickel - Tails / Penny - Tails Dime - Tails / Nickel - Heads / Penny - Heads Dime - Tails / Nickel - Heads / Penny - Tails Dime - Tails / Nickel - Tails / Penny - Heads Dime - Tails / Nickel - Tails / Penny - Tails
The probability of 2 coins both landing on heads or both landing on tails is 1/2 because there are 4 possible outcomes. Head, head. Head, tails. Tails, tails. Tails, heads. Tails, heads is different from heads, tails for reasons I am unsure of.
The building on the reverse [tails] side of the Jefferson nickel is the home of Thomas Jefferson, Monticello, located in Charlottesville, Virginia. There is a caption right under the building that identifies it.
On the obverse (heads) side is an image of President Thomas Jefferson, and the reverse (tails) shows his home Monticello.
The Liberty Nickel is a USA 5 cent coin which was minted from 1883 to 1912, bearing the image of Lady Liberty on the obverse [heads] side of the coin and a large letter "V" on the reverse [tails] side of he coin.
It is 3/8 = 0.375
It is worth something to an error collector, but not enough to finance your retirement. Might ge enough to get a cup of coffee at the Kwik Shop.
The mint mark on a 1939 Jefferson Nickel is located on the obverse (tails) side of the coin, just to the right of Monticello (the building) between the rim and the building. If there is no mark there then the coin was produced at the U.S. Mint facility in Philadelphia, Pennsylvania.
1/16 These are four independent events each with a 1/2 probability. The probability that all four occur (penny and nickels heads and dime and quarter tails) is: 1/2*1/2*1/2*1/2=(1/2)4=1/16.
They got there tails from magictail.de
THEY. ARE NOT BEARS! No, no tails.
Pr(4 tails | at least 3 tails) = Pr(4 tails and at least 3 tails)/Pr(at least 3 tails)= Pr(4 tails)/Pr(at least 3 tails)= (5/32) / (1/2) = 5/16.Pr(4 tails | at least 3 tails) = Pr(4 tails and at least 3 tails)/Pr(at least 3 tails)= Pr(4 tails)/Pr(at least 3 tails)= (5/32) / (1/2) = 5/16.Pr(4 tails | at least 3 tails) = Pr(4 tails and at least 3 tails)/Pr(at least 3 tails)= Pr(4 tails)/Pr(at least 3 tails)= (5/32) / (1/2) = 5/16.Pr(4 tails | at least 3 tails) = Pr(4 tails and at least 3 tails)/Pr(at least 3 tails)= Pr(4 tails)/Pr(at least 3 tails)= (5/32) / (1/2) = 5/16.