=+53. The article “Families of Distributions for Hourly Median Power and Instantaneous Power of Received Radio Signals” (J. of Research for the National Bureau of Standards, 1963: 753–762) suggests the lognormal distribution for x 5 hourly median power (decibels) of received radio signals transmitted between two cities. Consider the following sample of hourly median power readings:

2.7 5.4 9.7 22.8 30.5 55.7 66.2 97.3 186.5 240.0