The probability that exactly 6 are defective is 0.0792.
Given:
30% of the bulbs in a large box are defective.
If 12 bulbs are selected randomly from the box.
To find:
The probability that exactly 6 are defective.
Solution:
Probability of defective bulbs is:



Probability of non-defective bulbs is:



The probability that exactly 6 are defective is:





Therefore, the probability that exactly 6 are defective is 0.0792.
Learn more:
brainly.com/question/12917164
Answer:
3
Step-by-step explanation:
If<span> it is perfectly clear which angle is being named, an angle may be referred to by its ... Supplementary Angles are </span>2 angles<span> the </span>sum<span> of whose </span>measures<span> is </span>180<span>°. ... THEOREM: </span>If<span> two congruent angles form a </span>linear pair<span>, </span>they<span> are right angles.</span>