"47. The number of vacationers visiting Hawaii during a four-year period is shown in the table below. Also shown is the estimated number of visitors to Walt Disney's Magic Kingdom over the same period. Show the scatter diagram.

Compute the covariance and interpret the result.

Year Hawaii Visitors (millions) Magic Kingdom Visitors(millions)

2010 6.9 15.4

2011 6.3 14.7

2012 7.1 16.1

2013 7.4 16.5"

110. US exports of goods and services grew from $616,455,000,000 in 1992 to $1,831,835,000,000 in 2010 (source: International Trade Administration: US Export Fact Sheet).

Use the geometric mean to compute the average annual growth rate."