The table shows the distribution of marks obtained by som...
The table shows the distribution of marks obtained by some students in a test
Marks | 0-9 | 10-19 | 20-29 | 30-39 | 40-49 |
Frequency | 4 | 12 | 16 | 6 | 2 |
Find the modal class mark.
4.5
14.5
24.5
34.5
Correct answer is C
Modal class 20 - 29
Modal class mark = 20+292
= 492
= 24.5
The roots of the equation 2x2+kx+5=0 are α and β, where k is a constan...
The sum of the first n terms of a linear sequence is Sn=n2+2n. Find the common differe...
From the diagram above, h[g(3)] is...
If 2y2 + 7 = 3y - xy, find dydx...
Which of the following is a factor of the polynomial 6x4+2x3+15x+5?...