What is x in -2/3x - 11 = -7
1 answer:
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Answer: 0.421875
Step-by-step explanation:
According to the geometric distribution,
The probability that x number of trials take place until the first success occurs will be
, where p is the probability of getting success in each trial.
Given : The probability that a phone call produces a completed survey is p=0.25.
then q=1-0.25=0.75
Now, the probability that more than three phone calls are required to produce one completed survey :
Hence, the probability that more than three phone calls are required to produce one completed survey = 0.421875