Page 38 - Contributed Paper Session (CPS) - Volume 8

CPS2171 Rajkumari Latasana Devi et al.
# Source: Census of India, Sikkim, 2011
Using Spearman's rank correlation method, we get

r = 1 - 6Σd²
n(n² - 1)
= 1 – 6*14
4 (4²-1)
= 1 – 84
4 (16-1)
= 1 – 84
4 * 15
= 1 - 84
60
= 1- 1.4
= - 0.40
From the above calculation, the value of Spearman’s Rank Correlation
coefficient was found to be -0.40. The minus sign indicate the direction of the
relationship between literacy and sex ratio and the value 0.40 showed that the
strength of the relationship was low. It means that there were low negative
correlations between literacy and sex ratio in the state. We can interpret in
another way that with the increase in literacy, the sex ratio decreases, or with
the decrease in literacy, the sex ratio increases. Both the two variables are of
opposite of each other. We can also say that both literacy and sex ratio has an
indirect correlation. Hence, from the above result we concluded that literacy
and sex ratio had a low negative correlation between them but it was
insignificant (r = - 0.40, P=0.60).

4. Discussion
We know that Correlation measure the linear relationship between two or
more quantitative variables. Here, Spearman's rank correlation method was
applied by assigning ranks to the two variables: literacy rate and sex ratio.
Clearly, the coefficient of Correlations (r) was found to be negative and it was
0.40. This meant that literacy and sex ratio are opposite of each other. So, it is
a case of low degree of negative correlation. This shows that with the increase
in literacy, the sex ratio decreases or decrease in literacy, the sex ratio
increases. The finding of the present study revealed that literacy and sex ratio
were negatively correlated. But it was not statistically significant (P=0.60). A
study conducted in Gujarat concluded that there was negative correlation (-
0.52) between literacy and sex ratio in their study. In a study conducted in
Maharashtra to find out the relationship between literacy and sex ratio using
Spearmen’s Rank Correlation method revealed that the literacy and sex ratio
had positive but insignificant correlation in Maharashtra (r = 0.07). A study
conducted in Rajasthan also revealed that there was a negative correlation
between literacy and sex ratio in Rajasthan. The correlation between literacy
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