Answer:
The coronary heart disease specific mortality rate/density of participants in this cohort
= 13.57%
Step-by-step explanation:
a) Data and Calculations:
Total participants in the cohort = 7,000 persons
Total person-years contributed = 56,232
Death during follow-up = 1,890
Number of death due to coronary heart disease = 950
Mortality rate/density of participants in this cohort
= 950/7,000 * 100 = 13.57%
b) The result suggests that 13.57% of the 7,000 participants died during follow-up out of coronary heart disease. This number represents about 50% (950/1,890 * 100) of all deaths recorded during follow-up.
Answer:
See explanation below
Step-by-step explanation:
First we will going to rewrite 54 into its prime factors: 54 = 3³(2)
So, the expression 
can be written as:
<u>*We used the fact that a square root is like having a 1/2 exponent so we multiplied the exponents inside the root by 1/2 and then simplified them*</u>
