Hello there.
Question: <span>A school principal wants to find out if his school needs more bike racks. a survey is taken of 30 students who ride their bikes to school. why might the sample be biased?
Answer: It might be biased as the survey was only taken of students who ride their bikes to school. It is most likely that they would agree to it. To make it fair they survey should have been taken of a variety of different students.
Hope This Helps You!
Good Luck Studying ^-^</span>
The answer would be n=37 because…
40+n=77
subtract 40 on both sides, cancelling it out on the left side and 77-40=37 so:
n=37
Kai: 36/4 = 9 counts 9 times
Taya: 36/6 = 6 counts 6 times
Kai is incorrect. He counted 3 more times than Taya
Kai 4,8,12,16,20,24,28,32,36
Taya: 6,12,18,24,30,36