Given a dataset as below. we want to decide whether to play or not to play basketball on a certain day. each input has four features ( x1 , x2 , x3 , x4 ): outlook, temperature, humidity, wind. the decision (play vs no-play) is represented as . find entropy . [4pts] find conditional entropy |x1) , |x4) , respectively. [8pts] find mutual information and and determine whether which one ( x1 or x4 ) is more informative. [5pts] find joint entropy ) . [4pts]

c)as speed changes, wavelength and frequency change.

everything changes!

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.