( ( Many errors ) ( ( are ( made ( in ( ( ( both ( the measurements ) ) and ) ( the calculations ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Many) (NNS errors)) (VP (VBP are) (VP (VBN made) (PP (IN in) (NP (NP (PDT both) (DT the) (NNS measurements)) (CC and) (NP (DT the) (NNS calculations)))))) (. .)))
Many errors are made in both the measurements and the calculations.
(ROOT (S (NP (PRP You)) (ADVP (NP (NP (NN decrease) (NNS errors)) (PP (IN in) (NP (DT an) (NN experiment)))) (IN by)) (VP (VBP take) (NP (JJ many) (NNS measurements))) (. .)))