Which of the following has the highest sound velocity? 

Attenuation of an ultrasound beam can occur by 

Which ultrasound frequency is commonly used in the clinical setting? 

The type of compressional wave in which the particles move back and forth parallel to the direction of wave propagation is known as 

Scattering refers to

If frequency is reduced by a factor of two, the wavelength will 

The wavelength in a material having a wave velocity of 1,500 m/s employing a transducer frequency of 5 MHz is

Acoustic impedance is 

Random variable X possesses a normal distribution with mean 50 and standard deviation 10. Random variable Y possesses a normal distribution with mean 50 and standard deviation 20. Which of the following is​ true?

A survey of Mason students was conducted. The students were asked if they were currently in a relationship and if they were involved in sports. Of those surveyed, 45% reported that they are currently in a relationship, 15% stated they are involved in sports and 10% answered yes to both survey questions. (Hint: Construct a Venn diagram). Find the probability that a randomly selected student is in a relationship or involved in sports, but not in both.