1. Incide nce rate in the last influenza epidemic was found to be 50 per thousand (S%) of the population exposed. What should be the size of sample to find incidence rate in the current epidemic if allo wable eor is 0.005 and 0.01?
Optimization
Optimization comes from the same root as "optimal". "Optimal" means the highest. When you do the optimization process, that is when you are "making it best" to maximize everything and to achieve optimal results, a set of parameters is the base for the selection of the best element for a given system.
Integration
Integration means to sum the things. In mathematics, it is the branch of Calculus which is used to find the area under the curve. The operation subtraction is the inverse of addition, division is the inverse of multiplication. In the same way, integration and differentiation are inverse operators. Differential equations give a relation between a function and its derivative.
Application of Integration
In mathematics, the process of integration is used to compute complex area related problems. With the application of integration, solving area related problems, whether they are a curve, or a curve between lines, can be done easily.
Volume
In mathematics, we describe the term volume as a quantity that can express the total space that an object occupies at any point in time. Usually, volumes can only be calculated for 3-dimensional objects. By 3-dimensional or 3D objects, we mean objects that have length, breadth, and height (or depth).
Area
Area refers to the amount of space a figure encloses and the number of square units that cover a shape. It is two-dimensional and is measured in square units.
![Biostatistics
1. Incide nce rate in the last influenza epidemic was found to be 50 per thousand (5%) of the
population exposed. What should be the size of sample to find incidence rate in the
curent epidemic if allo wable emor is 0.005 and 0.01?
2. Hookworm prevalence rate was 30% before the specific tre atme nt and adoption of other
measures. Calc ula te the size of the sample required to find the prevale nce rate now if
allowable emor is 0.03 and0.06.
3. Consider the fo llowing study in which standing and supine systolic blood pressures were
co mpared. This study was perfomed on twe lve subjec ts. Their blood pressures were
measured in both positions.
Subject
Standing
Supine
132
1
136
146
145
140
3.
135
147
142
160
137
136
149
158
120
150
141
139
162
128
6.
7.
137
145
151
131
143
8.
11
12
state the hypothesis
carz that
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