Which of the following is(are) not true about sampling bias

a. Sampling bias is inevitable when conducting a survey
b. Quota sampling is still vulnerable to bias
c. Biased samples may trigger some insights or suggest grounds for a new study but they are not generalizable
d. all of the above

See my answer to your repost.

d. all of the above

To determine which of the options is not true about sampling bias, we need to examine each statement individually:

a. "Sampling bias is inevitable when conducting a survey." This statement is not true. While sampling bias can occur if the sampling method is flawed or not representative of the target population, it is not an inherent characteristic of surveys. By using proper sampling techniques, researchers can reduce or eliminate sampling bias.

b. "Quota sampling is still vulnerable to bias." This statement is true. Quota sampling is a non-random sampling technique where certain quotas are set for different subgroups in the population. Despite having some advantages, quota sampling can still be susceptible to biases, especially if the quotas are not reflective of the population characteristics.

c. "Biased samples may trigger some insights or suggest grounds for a new study, but they are not generalizable." This statement is true. Biased samples, by definition, do not accurately represent the entire population. Therefore, any insights or conclusions drawn from a biased sample may not be applicable to the broader population.

Based on the evaluation of each statement:

Option d. "all of the above" is not true because statement a is incorrect. Therefore, the correct answer is that not all of the statements are true about sampling bias.