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# Help with a homework question? (AS Maths) watch

1. This is the question;

A company sells sugar bags which are labelled as containing 500 grams. Although the mean weight of sugar in a bag is more than 550 grams, there is concern that too many bags are underweight. The company can adjust the mean or the standard deviation of the weight of sugar in a bag.

(i) State two adjustments the company could make.

I was thinking they could lower the mean since there is a concern that most of the bags are underweight. I'm unsure about the standard deviation though
2. (Original post by AtomicAJ)
This is the question;

A company sells sugar bags which are labelled as containing 500 grams. Although the mean weight of sugar in a bag is more than 550 grams, there is concern that too many bags are underweight. The company can adjust the mean or the standard deviation of the weight of sugar in a bag.

(i) State two adjustments the company could make.

I was thinking they could lower the mean since there is a concern that most of the bags are underweight. I'm unsure about the standard deviation though
Why would they lower the mean? That makes things worse since you will then have a greater possibility of having a bag underweight. Raising the mean is one possibility. Lowering the standard deviation is another.
3. (Original post by pvaz6965)
Why would they lower the mean? That makes things worse since you will then have a greater possibility of having a bag underweight. Raising the mean is one possibility. Lowering the standard deviation is another.
Ah yeah I meant higher the mean, I always mix them up. What exactly is standard deviation? The mean is the average amount of grams in each bag but how about the S.D?
4. (Original post by AtomicAJ)
Ah yeah I meant higher the mean, I always mix them up. What exactly is standard deviation? The mean is the average amount of grams in each bag but how about the S.D?
Google it. Standard deviation is a measure of the spread of a distribution - the width if you will.

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