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Biologists examined the question of variation in different genes through studies on
Ungrouped Data
Data that has not been organized into groups or categories and is presented in its raw form.
Bell-Shaped
Describes the graphical shape of a distribution that is symmetrical and has a single peak in the middle, resembling a bell; commonly associated with the normal distribution.
Standard Deviation
An index quantifying the spread or variability among a collection of numbers, where a smaller standard deviation suggests the numbers are closely clustered around the average.
Tchebysheff's Theorem
A statistical theorem stating that, for any real-valued random variable, the proportion of values lying within k standard deviations from the mean is at least 1-1/k^2, for k > 1.
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Q7: The names of genera were the basic
Q18: Genes are assumed to be passed from
Q23: In disruptive selection,over time<br>A)a population goes extinct.<br>B)the
Q26: Isometric viruses are _ in basic structure,which
Q27: The units of hereditary information is(are)called _.<br>A)genes<br>B)DNA<br>C)RNA<br>D)chromosomes
Q45: The half-life of carbon-14 is 5,600 years.A
Q54: Which one of the following is not
Q57: The oldest microfossils are of<br>A)prokaryotes.<br>B)eukaryotes.<br>C)insects.<br>D)pollen grains.<br>E)small animals.