Recall the double angle identity:
With measuring between 0º and 90º, we know
. So from the Pythagorean identity, we get
Then
2.One slice of cheese pizza contains 290 calories. A medium-size orange has one fifth that number of calories. How many calories
1 answer:
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Solution: Telemarketing. the probability that a call will reach a live person is 0.2. the calls are independent. (a) a telemarketer places 5 calls. what is the probability that none of them reaches a live person.
Answer: The given random experiment can be considered as binomial experiment with probability of success = 0.2 and number of trials = 5
Therefore, we have:
Let x be the number calls that reach to live person.
We have to find
Using the binomial probability distribution, we have:
Therefore, the probability that none of them reaches a live person is 0.3277