Wan has 22 bulbs of the same shape and size in a box. The colors of and amounts of the bulbs are shown below: 6 blue bulbs 9 red
bulbs 7 orange bulbs Without looking in the box, Wan takes out a bulb at random. He then replaces the bulb and takes out another bulb from the box. What is the probability that Wan takes out an orange bulb in both draws? ASAP PLZ
Probability of orange: 7/22 ^ That's for one draw. For 2 draws, it's when he draws an orange on one <u>and</u> then an orange on the next. So 7/22 x 7/22 = 49/484
Example: these two triangles are similar: If two of their angles are equal, then the third angle must also be equal, because angles of a triangle always add to make 180°. So AA could also be called AAA (because when two angles are equal, all three angles must be equal)
