perfecttgirly perfecttgirly
  • 12-11-2019
  • Mathematics
contestada

Jonathons piggy bank contains 20 nickels 30 quarters and 50 one dollar coins. He picks 20 coins from the bank at random

Respuesta :

dreworlds111
dreworlds111 dreworlds111
  • 12-11-2019

Answer:

All in all, Jonathan's piggy bank contains 100 coins. Among these coins, only 50 are one-dollar coins. Therefore, the theoretical probability of picking one-dollar coin from the piggy bank is equal to 50/100 or 1/2.  

Similarly, from the experiment, 20 coins were picked and among these there are 12 one-dollar coins. The answer to the second question is therefore 12/20 or 3/5.

Step-by-step explanation:

Answer Link

Otras preguntas

what value of a makes the equation true? 9a+2=4a-18
What does the random variable (r) for a binomial experiment of n trials represent?
Holly decided to share 1/2 of her share of the pizza with Deb. How much did each of them actually?
Holly decided to share 1/2 of her share of the pizza with Deb. How much did each of them actually?
If a store credit account charges 1.5% interest each month, what is the APR?
Which choice is equivalent to the expression below? 5x sqrt 2 - 2 sqrt 2 + 2x sqrt 2 A. 7x sqrt 2 - 2 sqrt 2 B. 2x^2 sqrt 2 C. 3x sqrt 2 D. 7x^2 sqrt 2
For what values of the variable is each rational expression undefined2x-3/2x-1( step by step please)
what value of a makes the equation true? 9a+2=4a-18
If a store credit account charges 1.5% interest each month, what is the APR?
Is the following correspondence a function