1. A student’s marks in the recitation, exam and project in a biology class were 80, 83 and 86
respectively. If the weights accorded these marks were 1, 2 and 3 respectively, what is the
weighted mean of the student?
2. A man drive to his workplace at 30 kph. On the way home he traveled at 50 kph. What is his
average speed?
3. Is the geometric mean of the first 100 natural numbers greater, equal or less than 50?
4. What is the variance of 1, 3, 5, and 7?
5. What is the mean absolute deviation of 1, 5, 8, & 10?
6. What is the standard deviation of 10, 20, & 30
respectively. If the weights accorded these marks were 1, 2 and 3 respectively, what is the
weighted mean of the student?
2. A man drive to his workplace at 30 kph. On the way home he traveled at 50 kph. What is his
average speed?
3. Is the geometric mean of the first 100 natural numbers greater, equal or less than 50?
4. What is the variance of 1, 3, 5, and 7?
5. What is the mean absolute deviation of 1, 5, 8, & 10?
6. What is the standard deviation of 10, 20, & 30
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Answer:
1. 83kg
2. The average distance can't be known as there isn't any distance said in the problem
3. The Geometric mean is 37.99 (or 38), is less than 50
4. 6.666666667
5. 3
6. 10
Step-by-step explanation:
Yung no2 po walang distance kaya di pwedeng masabi ang average distance