docs: clarify descriptions

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Author: gururaj1512

lib/node_modules/@stdlib/stats/base/variancetk/README.md

@@ -100,7 +100,7 @@ var variancetk = require( '@stdlib/stats/base/variancetk' );
 
 #### variancetk( N, correction, x, strideX )
 
-Computes the [variance][variance] of a strided array `x` using a one-pass textbook algorithm.
+Computes the [variance][variance] of a strided array using a one-pass textbook algorithm.
 
 ```javascript
 var x = [ 1.0, -2.0, 2.0 ];
@@ -154,7 +154,7 @@ The function has the following additional parameters:
 
 -   **offsetX**: starting index for `x`.
 
-While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to calculate the [variance][variance] for every element value in the strided array starting from the second element
+While [`typed array`][mdn-typed-array] views mandate a view offset based on the underlying buffer, the offset parameter supports indexing semantics based on a starting index. For example, to calculate the [variance][variance] for every other element in the strided array starting from the second element
 
 ```javascript
 var x = [ 2.0, 1.0, 2.0, -2.0, -2.0, 2.0, 3.0, 4.0 ];