Urgent please!!! I really don’t understand it, tysm to anyone who can answer thissss :))))
1 answer:
Answer:
- (ax + by + cz)/(a + b + c)
Step-by-step explanation:
<u>In terms of the scores we calculate the sum as:</u>
<u>The number is the sum of the frequencies:</u>
<u>Mean average score is:</u>
- (ax + by + cz)/(a + b + c)
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The third one is the answer
Answer:
havent got tought this yet sorry wish i can help
