QUIZ BEE

The following are properties of a Normal Distribution. Which is NOT?

• a.  The mean, median and mode are all equal and lie at the center of the normal curve.

• b.  The curve is symmetric at the center.

• c.  Majority of the values are on the left and the rest are distributed on the right side of the normal curve.

• d.  The total area under the normal curve is 1

It is a path in a graph that visits every vertex exactly once and returns to the starting vertex.

• a.  Euler circuit

• b.  Hamiltonian circuit

• c.  Euler path

• d.  Weighted path

It is a graph in which real number values are associated with every edge of the graph.

• 
  a.  Euler circuit

• 
  b.  Hamiltonian circuit

• 
  c.  Euler path

• 
  d.  Weighted path

The following are properties of equivalent graphs, EXCEPT?

• 
  a.  Equivalent graphs have the same number of vertices.

• b.  Same vertices are not necessarily adjacent.

• 
  c.  Equivalent graphs have the same number of edges. 

• 
  d.  Vertices with the same name have the same degrees.

Is the graph Hamiltonian?

• Yes

• No

• I don't know

• I don't care

Starting at vertex B, what is the total weight that you will accumulate if you apply the Greedy Algorithm in having a Hamiltonian graph?

• a.  18

• 
  b.  20

• 
  c.  30

• 
  d.  There is no Hamiltonian circuit.

Determine the truth value of the statement ~(~s ⋀ q). (Assume the following truth value of the simple statements: q is true, and s is false)

• True

• False

• Tralse

• Frue

Which of the following is NOT TRUE about the correlation coefficient r between x and y?

• a.    The range of the correlation coefficient is −1 to 1.

• 
  b.    If x and y have a strong positive linear correlation, r is close to 1.

• 
  c.    If there is a weak linear correlation, r is close to either 1 or -1.

• 
  d.    If x and y have a strong negative linear correlation, r is close to −1.

Which of the following correlation coefficients has the strongest degree of linear relationship?

• 
  a.  0.65 

• 
  b.  0.88

• 
  c.  -0.12

• 
  d.  -0.93

Given that; t: Taylor Swift is a singer.; s: Taylor Swift is a songwriter.; and r: Taylor Swift plays the guitar., rewrite the sentence "If Taylor Swift is a songwriter and she plays the guitar, then she is a singer." in symbols.

• 
  a. (s∧r)→t

• 
  b. s→(r∧t)

• 
  c. (s→r)∧t

• 
  d. s∧(r→t)