Opinion poll calls residential telephone, Basic Statistics

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Opinion poll calls residential telephone

When an opinion poll calls residential telephone numbers at random, only 20% of the calls reach a live person. You watch the random digit dialing machine make 15 calls.

a) What is the probability that exactly 3 calls reach a person?

b) What is the probability that at most 3 calls reach a person?

c) What is the mean number of calls that reach a person?

d) What is the standard deviation of the count of calls that reach a person?

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Basic Statistics: Opinion poll calls residential telephone

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Basic Statistics: Opinion poll calls residential telephone

Reference No:- TGS0844608

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Recent Questions Asked Basic Statistics

Q : Evaluate the magnitude of the charge on each sphere

Q : What must the final temperature become

Q : Calculate the speed of plane when the projectile was release

Q : How many grams of precipitate are formed

Q : Opinion poll calls residential telephone

Q : Determine work done in moving crate and power of hoist

Q : What wavelength of light does this correspond to per bond

Q : Prediction interval for the breaking torque

Q : Determining the emf of the coil

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Basic Statistics: Opinion poll calls residential telephone

Reference No:- TGS0844608

Recent Questions Asked Basic Statistics

Q : Evaluate the magnitude of the charge on each sphere

Q : What must the final temperature become

Q : Calculate the speed of plane when the projectile was release

Q : How many grams of precipitate are formed

Q : Opinion poll calls residential telephone

Q : Determine work done in moving crate and power of hoist

Q : What wavelength of light does this correspond to per bond

Q : Prediction interval for the breaking torque

Q : Determining the emf of the coil

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