13. The graph shows the scores of 40 students in a class of 10-items Mathematics test. How many students got the perfect score?
a. 3 b.5 c. 1 d. 7
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13. The graph shows the scores of 40 students in a class of 10-items Mathematics test. How many students got the perfect score?
a. 3 b.5 c. 1 d. 7
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Answer:
SOLUTION:
(82 × 4) - (72 + 97 + 82)
(328) - (251)
77 <== ANSWER
Steps:
1. Multiply the mean test score by 4
2. Add the three given test scores
3. Deduct the result of step 1 to the sum of the step 2
4. That's the answer
Step-by-step explanation: