IASSC ICBB Exam - Topic 7 Question 77 Discussion

Actual exam question for IASSC's ICBB exam

Question #: 77
Topic #: 7

[All ICBB Questions]

From this list select the best example of Bias in Sampling.

ATesting the completeness of cooking a cake but the testers cannot agree on how to measure internal temperature

BTesting the sharpness of a razor blade while the sample of 500 are from the same model razor

CTesting the weight of participants at a wrestling event and only measuring those who finished second or better

DTesting a hand-held GPS models for durability using samples only from Nokia Model P120

Show Suggested Answer

Suggested Answer: A

by Annice at Sep 13, 2024, 04:59 PM

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Cletus

3 months ago

I thought A was the best example, but B makes sense too!

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Shayne

4 months ago

Wait, are we sure D is biased? Nokia's pretty reliable.

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Kristel

4 months ago

C seems off too, only measuring top finishers?

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Eva

4 months ago

Definitely B, that's super biased!

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Omer

4 months ago

A is about measurement issues, not bias.

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Bernadine

5 months ago

I’m a bit confused about this. I thought bias was more about how the sample is chosen, but I guess all these options have some bias.

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Louann

5 months ago

I think option D is a clear case of bias because it only uses one model for testing. It doesn't represent all GPS models.

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Giuseppe

5 months ago

I'm not entirely sure, but I feel like option B could also be biased since it only tests one model of razor. Isn't that a form of bias too?

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Gearldine

5 months ago

I remember we talked about sampling bias in class, and I think option C might be the best example since it only considers a specific group of participants.

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Lavina

5 months ago

I'm a bit confused by this question. The options all seem to involve some kind of sampling, but I'm not sure which one is the best example of bias. I'll have to think it through carefully.

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Sylvia

5 months ago

Option C looks like the best example of bias to me. Selecting only the top finishers at a wrestling event would clearly skew the sample and not represent the full population.

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Carissa

5 months ago

Hmm, this is a tricky one. I'm not totally sure about the differences between the options. I'll have to read through them again and try to spot the key details that indicate bias.

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Wilson

5 months ago

This seems like a straightforward question on bias in sampling. I'll need to carefully consider each option and think about which one best represents a biased sample.

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Tommy

10 months ago

Option C is the way to go. Measuring only the winners is like baking a cake but only tasting the frosting!

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Marge

10 months ago

I'm going with C. Excluding the majority of the wrestlers from the weight testing is a clear case of sampling bias.

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Marge

8 months ago

Yeah, that could also introduce bias if they're not consistent in their measurements.

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Kaitlyn

8 months ago

A) Testing the completeness of cooking a cake but the testers cannot agree on how to measure internal temperature

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Roxane

8 months ago

I see your point, using only one model of razor could lead to biased results.

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Johnna

8 months ago

B) Testing the sharpness of a razor blade while the sample of 500 are from the same model razor

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Flo

8 months ago

That's definitely a biased sample. They should have included all participants.

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Ty

9 months ago

C) Testing the weight of participants at a wrestling event and only measuring those who finished second or better

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Edna

9 months ago

B) Testing the sharpness of a razor blade while the sample of 500 are from the same model razor

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Rickie

9 months ago

C) Testing the weight of participants at a wrestling event and only measuring those who finished second or better

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Ollie

9 months ago

A) Testing the weight of participants at a wrestling event and only measuring those who finished second or better

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Markus

11 months ago

Ha! Option C is hilarious. It's like they're only testing the champs - talk about a biased sample!

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Candra

9 months ago

D) Testing a hand-held GPS models for durability using samples only from Nokia Model P120

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Pete

10 months ago

C) Testing the weight of participants at a wrestling event and only measuring those who finished second or better

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Gail

10 months ago

B) Testing the sharpness of a razor blade while the sample of 500 are from the same model razor

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Lasandra

10 months ago

A) Testing the completeness of cooking a cake but the testers cannot agree on how to measure internal temperature

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Frederic

11 months ago

I'm not sure, but I think C might be the right answer. Focusing on just the top finishers doesn't seem like a representative sample.

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Justine

10 months ago

B) Testing the sharpness of a razor blade while the sample of 500 are from the same model razor

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Myra

10 months ago

A) Testing the completeness of cooking a cake but the testers cannot agree on how to measure internal temperature

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Lawrence

11 months ago

Option C is definitely the best example of bias in sampling. Measuring only the top wrestlers skews the results towards a specific subset of the population.

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