Summation of attitude of group is called:

Both morale and motivation contribute to the summation of attitude within a group of members.

Key Points 

Here's why:

• Morale: Refers to the overall spirit, confidence, and enthusiasm of a group. High morale indicates positive attitudes, while low morale represents negativity and discouragement.
• Motivation: Drives individuals and groups towards achieving goals. Strong motivation signifies a positive attitude towards action and engagement.

While distinct concepts, morale and motivation interlink and influence each other:

• High morale often fosters motivation, as positive group spirit encourages individual members to contribute and strive for success.
• Conversely, achieving goals and successes through motivated effort can boost group morale, creating a positive feedback loop.

Therefore, considering both morale and motivation provides a more complete picture of the overall attitude and sentiment within a group.