Question

Marissa is drawing coins from a bag that contains 5 pennies, 4 nickels, 5 m

and 2 quarters
a. What is the probability that she will draw a nickel? Write your answers
fraction, as a decimal, and as a percent.
If one penny. two dimes, and one quarter are added to the bag. what is the
new probability that Marissa will draw a nickel? Write your answer as a
fraction, as a decimal, and as a percent.
c.
In which situation is it more likely that Marissa will draw a nickel?​

Answer 1

a. Calculate the sum of all the coins combined = 5 + 4 + 5 + 2 =16. Then put the nickels over the sum = 4/16 = 1/4 = 0.25 = 25%

b. Add the new coins to the sum = 4/20 = 1/5 = 0.20 = 20%

c. She is more likely to draw a nickel in scenario A.

Answer 2

Explanation:

Total no of coins in the bag
`= 5+4+5+2 =16`

a) the probability that she will draw a nickel=no of nickels/total coins

=
`(4)/(16) =0.25`

If one penny, two dimes and one quarter added then we have total coins new as =
`16+1+2+1 = 20`

the

new probability that Marissa will draw a nickel= new nickel coins/new total

=
`(4+0)/(20) =0.20`

IN the first situation there is more likely as probability is more.