2.- Si las estaturas de un conjunto de personas adultas se distribuyen aproximadamente contorme a una curva normal y si su promedio aritmético y desviación estándar son respectivamente; 1.62 y 0.03 metros. Encuentre: (valor \( 10 \% \) ) A) La probabilidad de que un cierto número de personas tengan una estatura entre 1.64 y 1.67 . B) La probabilidad de que un cierto número de personas tengan una estatura entre la media y \( x=1.66 \).

1. The blood pressure readings for executives are approximately normally distributed with a mean systolic blood pressure of 134 and a standard deviation of 20 . Given this information it can be concluded that: a about \( 68 \% \) of the executives have blood pressures between \( \square \) and \( \square \) b about \( 95 \% \) of the executives have blood pressures between \( \square \) and c about \( 99.7 \% \) of the executives have blood pressures between \( \square \) and d about \( 16 \% \) of the executives have blood pressures above \( \square \) e about \( 2.5 \% \) of the executives have blood pressures below \( \square \) f about \( 0.15 \% \) of the executives have blood pressures below \( \square \) g about \( 50 \% \) of the executives have blood pressures above \( \square \).

24. What is the \( y \)-intercept of the trend line equation, and what does it mean in the context of the situation?

Classifying subjects on the basis of gender is an example of what kind of measurement scale? nominal. ordinal. interval. discrete. continuous.

5 The distribution of resting pulse rates of a sample of 2000 20-year-old men is approximately normal, with a mean of 66 beats/minute and a standard deviation of 4 beats/minute. a What percentage of these men have pulse rates of: i higher than 66 ? ii between 66 and 70 ? iii between 62 and 74 ? b Approximately how many of this sample of 2000 men have pulse rates between 54 and 78 beats/minute?

Cite as características que um bom diagrama de dispersão deve ter para facilitar a interpretação dos dados.