Earl is at Stereo Warehouse looking for some new speakers for his ground-floor apartment
He would like speakers that produce the full range of sound the human ear can typically hear, but doesn't want to pay extra for speakers that also produce sounds only a dog can hear. What range of frequencies should he look for?
a) 10 to 1,000 hz
b) 10 to 10,000 hz
c) 20 to 20,000 hz
d) 200 to 2,000 hz
c
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You want to assess the personality of family members, looking for similarities and differences. How would a twin study help you with your research?
What will be an ideal response?