Exercise 1. How many residents had at least two falls in the last 24 months? Put the answer in cell B15. Exercise 2. What percentage of the nursing home residents had at most eight falls in the last 24 months? Put the answer in cell B16.

Chapter 9 INTRODUCTION (Review of Chap According to the National Center for Health Statistics, a 19 -year-old female whose height is 67.1 inches has a height that is at the 85 th percentile. Explain what this means.

Variance of 1,3,5,7,9.

La duración en horas de cierta marca de bombillos se ajusta a una distribución N(48000, 3000), La duraciōn de los bombillos en un intervalo de confianza del \( 80 \% \) está:

Sea \( X \) una variable aleatoria con \( N(10,5) \), para que valor de \( x \) se cumple la siguiente probabilidad. \( P(X<x)=0.975 \)

\( 1 \leftarrow \quad \begin{array}{l}\text { A sample of } 100 \text { randomly selected registered voters in a city was asked their political affiliation: Democrat (D), } \\ \text { Republican }(R) \text {, or Independent (I). The results of the survey are available below. Complete parts (a) through (e) } \\ \text { below. }\end{array} \)