Step 4. demonstrations are clear, easy to understand and put into practice. The level of satisfaction is at a good level, 18 moderate, 10 fair number two person who made a satisfaction rating of 30 people, which can average as follows:
= ((18x4) + (10x3) + (. 2x2) + (0x1)) / 30
= 72 + 30 + 4 + 0/30
= 106/30
= 3:53
, so the average was 3.53 in the satisfaction level is good.
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