Question

a bag contains 11 brown, 16 black, 19 gray, and 9 white pebbles. you pick one pebble at random. find the probability that it is not white. p(not white) = ? /

Explanation:

Step1: Calculate total number of pebbles

$11 + 16+19 + 9=55$

Step2: Calculate number of non - white pebbles

$11 + 16+19=46$

Step3: Calculate probability

$P(\text{not white})=\frac{46}{55}$

Answer:

$\frac{46}{55}$