2. A total of 525 records of a hospital were reviewed and 175 of the patients had a heart problem, 150 a
respiratory problem, 125 some type of trauma and
75 had other issues. Find the following.
a. P(some type of trauma)
b. Pla heart or respiratory problem)
c. P(did not have a heart problem)

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.