Question

b) In an ophthalmic OPD 130 persons above the age of 40 years were examined.
Following findings were observed.
Trachoma
No Trachoma
Total
30
50
80
Comeal Degeneration
No Comeal Degeneration
25
25
SO
Total
55
75
130
Determine if there is any association between Trachoma and comeal degeneration.
(At 5% significance level, table value of the test = 3.84, df =1)​

Answer 1

$\huge\red{❥} \blue{A}\pink{N} \green{S᭄} \red{W} \purple{E}\blue{R} \pink\bigstar$

Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

Answer 2

Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

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