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Andrei [34K]
3 years ago
10

After measuring a sample of individuals, a researcher finds that one participant's score is three times bigger than another part

icipant's score. This pair of measurements must come from a(n) ________ scale.
Physics
1 answer:
Strike441 [17]3 years ago
3 0

Answer:

<u>Ratio</u> scale.

Explanation:

  • Ratio scale is a quantitative scale used for variable measurement which allows any researcher to compare the intervals of the measured parameter.
  • Ratio scale is the 4th level of measurement having a zero point or character of origin.
  • Ratio scale possesses most of the features of the other three variable measurement scale i.e ordinal, nominal and interval scales.
  • Nominal variables are used to name, or label a series of values.
  • Ordinal scales provide a sufficient amount of information about the order of choices, such as one would be able to understand from using a customer satisfaction survey, while the interval scales give us the order of values and also about the ability to quantify the difference between each one.
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Answer: True

Explanation:

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A nearsighted person wants to see an apple that is 7 meters away but can only clearly see objects that are at most 62 cm away fr
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Answer:

The power of the corrective lenses is 3.162 D.

Explanation:

Given that,

Object distance = 70 cm

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Distance between eyes and glasses = 2.5 cm

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So now ,

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Using formula for focal length

\dfrac{1}{f}=\dfrac{1}{v}+\dfrac{1}{u}

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Using formula of power

P=\dfrac{100}{f}

P=-\dfrac{508}{16065}\times100

P=-3.162 \ D

Negative sign shows the lens is diverging.

Hence, The power of the corrective lenses is 3.162 D.

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