The standard deviation of the sample mean differences is 16.98.
It is defined to be the square root of the population variance of the vector. The sample standard deviation s is defined to the square root of the sample variance of the vector.
The standard deviation of the sample mean differences should be calculated using the standard deviations of the two populations. In order to see how they differ, we need to first subtract them from each other, so: 21.2-17.6 = 3.6 We then divide this number with the first standard deviation as follows: 3.6/21.2 and multiply this answer by 100. Therefore, the standard deviation of the sample mean is 3.6/21.2 x 100 = 16.98.
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supported by an ecosystem?
Answer:
umm chile
Explanation:
me dont understand because im slow
B. The effects of a disease on population size
C. The effects of an invasive plant species on bird nesting sites
D. The effects of competition on survival
release water
release hydrogen gas
produce bases
Answer:
Release hydrogen gas
Explanation:
B. RNA
C. DNA
D. starch
Answer:
C. DNA
Explanation:
Prior to the discovery of DNA it was believed that proteins were responsible for carrying the hereditary information of the living organism. However, DNA was discovered in 1869 by German biochemist Johann Friedrich Miescher. His research focused on the white blood cells of pus, as these cells have large nuclei and are easy to isolate from the cytoplasm. The goal was to determine the chemical compounds in the nucleus of cells. The material for his research, pus, was easy to obtain from the bandages used for the wounds.
The biochemist has discovered a material of acidic nature composed of phosphorus and nitrogen. It was a compound, apparently made up of large molecules which it called nuclein.
In 1880 Albrecht Kossel demonstrated that the nuclein contained nitrogenous bases in its structure, hence they were rich in nitrogen as Miescher had shown.
In 1889, Miescher's pupil Richard Altmann proves the acidic nature by obtaining the high-purity nuclein, and called it nucleic acid, DNA.