Search results
Results From The WOW.Com Content Network
The correlation coefficient can be derived by considering the cosine of the angle between two points representing the two sets of x and y co-ordinate data. [10] This expression is therefore a number between -1 and 1 and is equal to unity when all the points lie on a straight line.
A floating-point number system is normalized if the leading digit is always nonzero unless the number is zero. [3] Since the significand is d 0 . d 1 d 2 … d p − 1 {\displaystyle d_{0}.d_{1}d_{2}\ldots d_{p-1}} , the significand of a nonzero number in a normalized system satisfies 1 ≤ significand < β p {\displaystyle 1\leq {\text ...
109 Gm (0.7 au) – distance between Venus and the Sun; 149.6 Gm (93.0 million mi; 1.0 au) – average distance between the Earth and the Sun – the original definition of the astronomical unit; 199 Gm (1.3 au) – diameter of Rho Persei, an asymptotic giant branch star, fusing carbon into neon in a shell surrounding an inert core. [179]
For instance, if a vehicle travels a certain distance d outbound at a speed x (e.g. 60 km/h) and returns the same distance at a speed y (e.g. 20 km/h), then its average speed is the harmonic mean of x and y (30 km/h), not the arithmetic mean (40 km/h). The total travel time is the same as if it had traveled the whole distance at that average speed.
A measure of distance equal to about 7 ⁄ 8 of a mile (1.4 km), defined as the closest distance at which sheep remain picturesque. The Sheppey is the creation of Douglas Adams and John Lloyd, included in The Meaning of Liff, their dictionary of putative meanings for words that are actually just place names. [16]
There are many hyperplanes that might classify the data. One reasonable choice as the best hyperplane is the one that represents the largest separation, or margin, between the two classes. So we choose the hyperplane so that the distance from it to the nearest data point on each side is maximized.
Normal distributions are important in statistics and are often used in the natural and social sciences to represent real-valued random variables whose distributions are not known. [ 4 ] [ 5 ] Their importance is partly due to the central limit theorem .
Tasmania from space. Tasmania (/ t æ z ˈ m eɪ n i ə /; palawa kani: lutruwita [14]) is an island state of Australia. [15] It is located 240 kilometres (150 miles) to the south of the Australian mainland, and is separated from it by the Bass Strait.