Biostatistics — Flashcards

Flashcard 71: A bar chart in which each bar is divided into segments representing the relative proportions of its sub-divisions is a _____.

Answer: component bar chart

Flashcard 72: dependency ratio in india is _____

Answer: 50.2%

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Flashcard 73: national family health survey is used for _____ indicators

Answer: health and morbidity

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Flashcard 74: To calculate the significance of difference in proportions: **Universe to Sample:** \(Z =\) _____\)}}, where \(SE_{p} =\) _____\)}} **Sample to Sample:** \(Z =\) \(\frac{p_1 - p_2}{SE_{(p_1 - p_2)\)}}, where \(SE_{(p_1 - p_2)} =\) \(\sqrt{\frac{p_1q_1}{n_1} + \frac{p_2q_2}{n_2\)}}

Answer: \(\frac{p - P}{SE_{p

Extra: Where: - \(p, p_1, p_2\): Sample proportions - \(P\): Population proportion - \(q = 1 - p\) - \(n, n_1, n_2\): Sample sizes

Flashcard 75: p value ranges from  _____

Answer: 0 to 1

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Flashcard 76: Correlation coefficient used to measure **linear** relationships: _____

Answer: Pearson correlation

Flashcard 77: Mean formula for **grouped data**:\n(\(f\) = frequency, \(X\) = value, \(n\) = total frequency)\n\n_____

Answer: \(\frac{\sum fX}{n}\)

Flashcard 78: False positive error rate is related to _____ error

Answer: Type I

Flashcard 79: What is the equation for Positive Predictive Value (PPV)?\n_____

Answer: PPV = TP / (TP + FP)

Flashcard 80: _____ is the last affected measure by extreme values

Answer: mode

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