  We present a statistical analysis of power distribution of oscillations in a
plage region in active region NOAA AR12651, observed jointly with ALMA (Atacama
Large Millimeter/Submillimeter Array), IRIS (Interface Region Imaging
Spectrograph), and SDO (Solar Dynamics Observatory). We employ coordinated ALMA
Band-6 (1.25 mm) brightness temperature maps, IRIS Slit-Jaw Images in 2796
{\AA} passband, and observations in six passbands (1600 {\AA}, 304 {\AA}, 131
{\AA}, 171 {\AA}, 193 {\AA} and 211 {\AA}) of AIA (Atmospheric Imaging
Assembly) onboard SDO. We perform Lomb-Scargle transforms to study the
distribution of oscillation power over the observed region by means of dominant
period maps and power maps. We study spatial association of oscillations
through the atmosphere mapped by the different passbands, with focus on the
correlation of power distribution of ALMA oscillations with others. We do not
observe any significant association of ALMA oscillations with IRIS and AIA
oscillations. While the global behavior of ALMA dominant oscillations shows
similarity with that of transition region and coronal passbands of AIA, the
ALMA dominant period maps and power maps do not show any correlation with those
from the other passbands. The spatial distribution of dominant periods and
power in different period intervals of ALMA oscillations is uncorrelated with
any other passband. We speculate the non-association of ALMA oscillations with
those of IRIS and AIA be due to significant variations in the height of
formation of the millimeter continuum observed by ALMA. Additionally, the fact
that ALMA directly maps the brightness temperature, in contrast to the
intensity observations by IRIS and AIA, can result in the very different
intrinsic nature of the ALMA oscillations compared to the IRIS and AIA
oscillations.
