Here are 10 test scores: 30, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these scores is 74.
1 answer:
We add up all those numbers (excluding 30) and divide by the number of numbers (9). This results in 78.8 (round up to 79).
79-74 = 5. So the mean has increased by 5 points. (C)
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Hi,
Hope this helps.
r3t40
Answer:
correct
Step-by-step explanation:
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Answer:
D
Step-by-step explanation:
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