Question

A box contains 30 radio chips of which 10 are defective. If 7 chips are picked at random out of the box randomly, what is the probability that at least 8 are defective?

Needs to show all work.

Answer 1

Answer my question first

if one ratio is given find all other find sin30+cos30?

Answer 2

Answer the chace is 50%

Explanation:

because if you defined it then simplify it u get 50