Why are closed itemsets often preferred over maximal itemsets in certain data mining applications? 

What does a large eigenvalue in PCA indicate?

Extra Credit: The most popular golfer in the 1920s and 1930s was Bobby Jones. (1 point)

The Health Reform movement brought to light the need for youth sports programs. What are two of the most notable youth sport programs still in existence today? What was their purpose? 

Extra Credit: She was the first woman to swim the English Channel. (1 point)

Recall that a linear combination/superposition of the functions v1(x,t), v2(x,t), v3(x,t), …, vn(x,t){“version”:”1.1″,”math”:”v1(x,t), v2(x,t), v3(x,t), …, vn(x,t)”} is a function of the form  v ( x , t ) = ∑ k = 1 n α k v k ( x , t ) {“version”:”1.1″,”math”:”v(x,t)=\displaystyle\sum_{k=1}^n\alpha_kv_k(x,t)”}where the αk{“version”:”1.1″,”math”:”αk”} are constants. Find a linear combination/superposition of only the functions you found in question 1 above that are solutions to the heat equation, (i.e., those with a YES), such that this linear combination/superposition satisfies the boundary conditions  u ( 0 , t ) = 0  and  u x ( 2 , t ) = t ,  for all  t > 0. {“version”:”1.1″,”math”:”u(0,t)=0 \text{ and } u_x(2,t)=t, \text{ for all } t>0.”}If you cannot satisfy these conditions, there is something wrong with your superposition!

Show that the Sturm-Liouville problem  { ϕ ″ + λ ϕ = 0 ,   0

In physical anthropology, why is it useful to examine sexual dimorphism?

Robust australopithecines were extinct by

You find a fossil skeleton with the following traits: eyes in the front of the skull, an opposable thumb, vertebrae (spinal column), fused frontal suture, 2.1.3.2 dental formula, lack of a reflective tapetum. It likely is a fossil species in which group . It has an IMI of 50 so it is likely .