3 statistic question(MC)

Which of the following is most likely a population as opposed to a sample?
a) Respondents to a newspaper survey
b) The first 5 students completing this test
c) Every third person to arrive at an ATM
d) Registered voters in a country
e) None of the above

A summary measure that is computed from a sample to describe a characteristic of a population is called
a) A parameter
b) A statistic
c) A population
d) A sample
e) A random variable

Which of the following measurements randomly selected from a population could be considered a rare event?
a) x = 0 from a population with mean -3 and standard deviation 2
b) x = -5 from a population with mean 1 and standard deviation 4
c) x = 7 from a population with mean 3 and standard deviation 2
d) x = 4 from a population with mean 0 and standard deviation 1
e) x = 10 from a population with mean 0 and standard deviation 5