In a Certain Class,40% of Students Had a B Average

question 71

Essay

In a certain class,40% of students had a B average at midterm.Of these,50% ended up with a course grade of B.Of those who did not have a B average at midterm,40% ended up with a course grade of B.If one of the students in the class is selected at random and is found to have received a B for the course,what is the probability that the student did not have a B average at midterm?

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Definitions:

Amylase

An enzyme that helps digest carbohydrates by breaking them down into simpler sugars, primarily found in saliva and pancreatic fluid.

Vas Deferens

A long, muscular tube that transports mature sperm from the epididymis to the ejaculatory ducts in anticipation of ejaculation.

Seminal Vesicle

A pair of glands in males that produce and secrete a significant portion of the fluid component of semen.

Bulbourethral Gland

A gland in males that secretes a lubricating mucus fluid into the urethra during sexual arousal.