1. What is the weighted mean if scores are 4, 6, 8 with weights 1, 2, 3 respectively?
Back to dashboard
Reading mode
Mth – Half Book 2
Correct answer is shown on each question. Use Next to read one by one.
Question 1 of 20
0% read
2. If the ratio of volumes of two similar spheres is 1:8, what is the ratio of their radii?
3. The distance formula is derived from which theorem?
4. What is the class midpoint of the interval 20-30?
5. If the mean of 5 numbers is 8, what is their sum?
6. What is the weighted mean of scores 5, 7, 9 with weights 2, 3, 1 respectively?
7. What is the mode of the data 5, 5, 6, 7, 8, 8, 8, 9?
8. What is the mean of the frequency distribution: value 2, frequency 3; value 4, frequency 5; value 6, frequency 2?
9. Find the median of: 7, 9, 12, 15, 18.
10. What is the centroid of a triangle also known as?
11. What is the slope of the line 5x + y = 7?
12. What is the slope of the line whose equation is x = 3?
13. The distance between (x1, y1) and (x2, y2) is given by:
14. What is the relative frequency of an event if it occurs 25 times out of 100 trials?
15. What is the median of the grouped data with cumulative frequencies 5, 12, 25, 35, 40 and total frequency 40?
16. A frequency polygon is drawn by joining the midpoints of the tops of the bars of a:
17. A histogram differs from a bar chart because:
18. The likelihood of an event occurring is called its:
19. What is the two-intercept form of a line?
20. If two similar cylinders have heights in ratio 2:5, what is the ratio of their curved surface areas?