A very large bag contains more coins than you are willing to count. Instead, you draw a random sample of coins from the bag and record the following numbers of each type of coin in the sample before returning the sampled coins to the bag. If you randomly draw a single coin out of the bag, what is the probability that you will obtain either a quarter or a nickel? Enter a fraction or round your answer to 4 decimal places, if necessary.

Coins in a Bag
Quarters Dimes Nickels Pennies
26 21 29 24

Question

A very large bag contains more coins than you are willing to count. Instead, you draw a random sample of coins from the bag and record the following numbers of each type of coin in the sample before returning the sampled coins to the bag. If you randomly draw a single coin out of the bag, what is the probability that you will obtain either a quarter or a nickel? Enter a fraction or round your answer to 4 decimal places, if necessary.
 
Coins in a Bag
Quarters	Dimes	Nickels	Pennies
26	21	29	24

Vocaloid · Answer

Either a quarter or a nickel —> (combined # of quarters + nickels) / (total # of coins) = ?