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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.