Instruction 5.8 from an Inventory of 48 New Cars Being Shipped to Shipped

Short Answer

Instruction 5.8
From an inventory of 48 new cars being shipped to local dealerships, corporate reports indicate that 12 have defective radios installed.
-Referring to Instruction 5.8,what is the probability out of the eight new cars it just received that,when each is tested,at least half of the cars have defective radios?