It means: He is weighted with memories.
This phrase suggests that the speaker is burdened or overwhelmed by the responsibilities or obligations they have as a giver or caregiver to others. They feel the weight of these duties and it is affecting them emotionally or physically.
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When the Giver says he is "so weighted with them," he means that he is burdened or overwhelmed by the memories and emotions he carries. The memories hold significant emotional weight for him, impacting his wellbeing and creating a heavy burden to bear.
The arithmetic mean is a weighted mean where each observation is given the same weight.
78 ...I am so weighted with them(the giver talking about the memories) 81 ...he could see them gather on the back of his hands, like cold wet fur 82 ..the breathless glee that overwhelmed him
The receiver is the person who receives the feelings of the giver so that he knows what everything means.
A weighted mean is when some values contribute more than others. In order to calculate weighted mean multiply each weight by its value, add those and then divide by the sum of the weights.
The weighted mean is simply the arithmetic mean; however, certain value that occur several times are taken into account. See an example http://financial-dictionary.thefreedictionary.com/weighted+average
weighted mean is getting the weighted average of students. normally, it is always use in computing the general average of the students to determine the ranking of the whole class.
Geometric mean
The arithmetic mean and the weighted mean are used in different situations. The arithmetic mean is used in frequencies as a general average. The weighted mean is used when different factors contribute to some kind of total for example with weighted index numbers. It is not a matter of accuracy it involves using the right mean in the right situation. Almost always (if not always) a question will specify which mean to use.
"Weighted mean" is the average calculated by taking into account not only the frequencies of the variables but also some other factors such as their variance.
Arithmatic Mean
weighted average number of shares