Answer:
A) The greater the variance within the population, the larger the sample should be.
Explanation:
The variance of a sample mean is inversely proportional to the sample size, that is, the larger the sample size the smaller the variability of the sample. When sample size increases, the range decreases and hence the variance decreases resulting in a more accurate research result with minimal experimental error.
Hence the researcher should employ a large sample size to reduce the variation in the population.
It’s A
Hope fully this helps!!
Answer:
It is a process by which greenhouse gases allow the sun’s light to penetrate the atmosphere but stop the heat from escaping.
Explanation:
a green house is a house made purely of glass a transparent material within which the conditions for plant growth such as temperature and humidity can be controlled. this when the temperature is set to a particular degree it remains same untill regulated as there's no where for heat to escape.
the green house effect therefore implies the fact that gases are forming a barrier around the earth that prevents the heat from the sun and other sources from escaping. A similar effect in a green house.
Answer:
A
Explanation:
because it involves borrowing
