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2. Kate wants to take a survey to find out the amount of weekly allowance of
students at her school. Determine whether each of the following methods is a
random sampling or not. Explain.
a. Ask 20 close friends. b. All the names of 1st graders were put
into a pile and 20 students were
randomly selected.
c. All the names of the students were d. All the names of female students
put into a pile and 20 students were were put into a pile and 20 students
randomly selected. were randomly selected.
2. Kate wants to take a survey to find out the amount of weekly allowance of
students at her school. Determine whether each of the following methods is a
random sampling or not. Explain.
a. Ask 20 close friends. b. All the names of 1st graders were put
into a pile and 20 students were
randomly selected.
c. All the names of the students were d. All the names of female students
put into a pile and 20 students were were put into a pile and 20 students
randomly selected. were randomly selected.
