Would appreciate the help
 
											 
											Answer:
The probability of obtaining exactly 3 tails is on the tosses is 1/8.
Step-by-step explanation:
P(all tails)= P(nickel tails)P(dime tails)P(quarter tails)
P(all tails)= (1/2)(1/2)(1/2)
P(all tails)= 1/8