(b)

Smear	Modified QBC
	Positive	Negative
Vivax
Positive-100	98 TP	2 FN
Negative-50	1 FP	49 TN
Total-150	99	51
Falciparum	Positive	Negative
Positive-101	99 TP	2 FN
Negative-50	2 FP	48 TN
Total-151	101	50

TP: true positive, TN: true negative, FN: false negative, and FP: false positive.