EM-2997
Comparing data with mean and standard deviation
E Math · Secondary 4 · Hard · Comparing data with mean and standard deviation
Two machines, P and Q, fill bottles of juice.
Machine P: mean volume ml, standard deviation ml.
Machine Q: mean volume ml, standard deviation ml.
Which statement best compares the performance of the two machines?
Machine P: mean volume ml, standard deviation ml.
Machine Q: mean volume ml, standard deviation ml.
Which statement best compares the performance of the two machines?
- P has a higher average volume but Q is more consistent.
- P has a lower average volume and is more consistent than Q.
- Q has a higher average volume but P is more consistent.
- P and Q have the same average volume but P is more consistent.
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