Channel One" is an educational television network for which participating secondary schools are equipped with TV sets in every classroom. It has been found that 30% of secondary schools subscribe to Channel One, where of these subscribers 20% never use Channel One while 30% claim to use it more than 5 times per week. Find the probability that a randomly selected secondary school subscribes to Channel One and uses it more than 5 times per week.
Added by Jennifer D.
Step 1
- Probability of subscribing to Channel One: 30% = 0.30 - Probability of subscribing to Channel One and never using it: 20% of subscribers = 0.20 - Probability = 0.30 * 0.20 = 0.06 Show more…
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Channel One" is an educational television network for which participating secondary schools are equipped with TV sets in every classroom. It has been found that 80% of secondary schools subscribe to Channel One, where of these subscribers 10% never use Channel One while 35% claim to use it more than 5 times per week. Find the probability that a randomly selected secondary school subscribes to Channel One but never uses it.
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