Visual meaning of 'predominantly'? - learn with images, example in daily life

Visual illustration of predominantly: In a predominant manner. Most commonly or frequently by a large margin. - Image 1

predominantly: In a predominant manner. Most commonly or frequently by a large margin. - Thumbnail 1

predominantly: In a predominant manner. Most commonly or frequently by a large margin. - Thumbnail 2

adverb

In a predominant manner. Most commonly or frequently by a large margin.

"The membership is predominantly elderly, 90% are over age 60."

frequency amount