Kari plans to sample 20 people of a population that contains 100 students. She wants to determine how many people wake up before 6 a.m. Which sample is the most random?
Answers
Given : Kari plans to sample 20 people of a population that contains 100 students.
She wants to determine how many people wake up before 6 a.m
To Find : Which sample is the most random
the first 20 students who arrive at school in the morning
all 20 boys on the swim team
5 students out of each of the 4 homeroom classes
the last 20 people in line for breakfast in the cafeteria
Solution:
the first 20 students who arrive at school in the morning
can be biased as they can be waking up early
all 20 boys on the swim team -
This will be biased data
5 students out of each of the 4 homeroom classes
This would be a random sample
the last 20 people in line for breakfast in the cafeteria
can be biased as they can be waking up late
5 students out of each of the 4 homeroom classes sample is the most random
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Kari plans to sample 20 people of a population that contains 100 students. She wants to determine how many people wake up before 6 a.m. Which sample is the most random?
the first 20 students who arrive at school in the morning
all 20 boys on the swim team
5 students out of each of the 4 homeroom classes
the last 20 people in line for breakfast in the cafeteria