Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin. the table of randomly generated coin selections simulates this scenario. each letter represents the first letter of the associated coin. npp ndn nnp pdp npp pdn dpn nnn pdn npp pnn npp npp nnd dnp pnn nnp ppp pnp nnn ppp dpp ppd pdd pdp pdp ppp npp dnp pnn pdn nnn ppp dpn dpd nnd npp pdp pnp dnd ppn dpn pnp npn ndn ppp dpp ppn ndp ppp the estimated probability that exactly two of the three coins avery randomly picked are nickels is . the estimated probability that exactly one of the three coins avery randomly picked is a dime is . the estimated probability that all three coins avery randomly picked are pennies is . the estimated probability that exactly two of the three coins avery randomly picked are nickels is the estimated probability that exactly one of the three coins avery randomly picked is a dime.