Question

Emma buys a bag of assorted buttons to use for a craft project . In the bag ,there are 18 white buttons, 9 black buttons , and 3 blue buttons . She randomly selects one button from the bag, replaces it, then randomly selects another button . What is the probability that she selects a white button and a blue button? A. 0.7 B 0.6 C 0.18 D 0.06

Answer 1

Total buttons = 18 + 9 + 3 = 30 buttons

Total number of white buttons = 18

Total number of blue buttons = 3

Therefore, the formula to calculate the probability is,

`Probability\text{=Number of required outcomes/Total outcomes}`

Hence,

`P\left(white\right)* P\left(blue\right)=(18)/(30)*(3)/(30)=(54)/(900)=\:0.06`

Hence, the answer is 0.06 (OPTION D).