Question

Heather has a bag with 16 red blocks, 11 blue blocks, 9 purple blocks, 15 green blocks, 8 yellow blocks, and 20 orange blocks. If she was to draw a block out of the bag, record the color and replace the block back in the bag, repeating 500 times, what would most likely be the probability of drawing an orange block (round to the nearest hundredth)?
A) 0.14
B) 0.19
C) 0.20
D) 0.25

Answer 1

There is a total of 16+11+9+15+8+20 = 79 blocks.  Since she is replacing the block each time it is drawn, the probability that she draws an orange block is always the same (10 draws or 500 draws).  Since 20 of the blocks are orange, the probability would be

20/79 or

D) 0.25