we are testing on probabilty

Question

Venessa has a piggy bank that contains a collection of nickels, pennies, dimes and quarters. She randomly draws a coin out of the piggy bank, records the result, and then replaces the coin. The results of her draws are shown below.

Coins	Number of Draws
nickel	32
penny	54
dime	13
quarter	29

Based on the results above, predict the number of times a quarter would be drawn if Venessa draws a coin 256 times.

 A. 

54

 B. 

58

 C. 

60

 D. 

120

Answer 1

First, add up how many trials were done in her experiment:

32+54+13+29 = 128

Now, find the experimental probability of drawing a quarter:

²⁹/₁₂₈ = .2266

Now multiply that experimental probability by the number of trials in the proposed second trial:

.2266 * 256