In 2014, the national average (mean) for mathematics SAT’s was 538. Suppose the distribution of scores is approximately bell-shaped and the standard deviation was 48. Find the z score of 685. Based on the empirical rule, is 685 significantly high?

True or false? Formation of dental plaque starts as biofilm formation on the teeth

Suppose we select one person at random from the collection of 665 people categorized in the table below: Results Table Education Level Single Married Divorced Widow/Widower Total Less HS 17 70 10 28 125 High School 68 240 59 30 397 College or Higher 27 98 15 3 143 Total 112 408 84 61 665 Find the probability that the person is divorced OR has a High School education. Leave your answer as a fraction. Do not simplify. 

Dario and Oliver are working independently in new algorithms to multiply two n-bit integers.  Dario came up with a Divide and Conquer algorithm that splits the problem into four subproblems, each must multiply integers of size n/3 bits, and the conquering step takes him time Oliver split the product into two subproblems, each carry multiplications of integers of size n/2, and his conquering step takes linear time. Please answer questions 8-10.

Rhizopus is a member of the                   .

When performing a transcranial color Doppler (TCD) imaging examination, the best results are obtained using a ___________ transducer?

What is the major role that fungi play in the environment?

What is a deuteromycete?  To which of the major “perfect” groups are most deuteromycetes assigned one their “perfect” forms are discovered?

Can poor dental health, e.g. accumulation of tooth plaque, increases one’s risk for cardiovascular disease? If yes, why?  (0.5 points)

Intracranial arterial velocities ______________ with increased age?