The marks scored by 30 students in a Mathematics test are...
The marks scored by 30 students in a Mathematics test are recorded in the table below:
Scores (Mark) | 0 | 1 | 2 | 3 | 4 | 5 |
No of students | 4 | 3 | 7 | 8 | 6 | 2 |
What is the total number of marks scored by the children?
82
15
63
75
Correct answer is D
Scores (Mark) | 0 | 1 | 2 | 3 | 4 | 5 | |
No of students | 4 | 3 | 7 | 8 | 6 | 2 | |
fx | 0 | 3 | 14 | 24 | 24 | 10 | 75 |
Given that A and B are sets such that n(A) = 8, n(B)=12 and n(AnB) =3, find n(AuB). ...
Marks 0 1 2 3 4 5 Frequency 7 4 18 12 8 11 The table gives the distrib...
Evaluate (212)3 - (121)3 + (222)3...
If y = x cos x, find dy/dx ...
In the figure, PQR is a semicircle while PQ and QR are chords. QS is the perpendicular fro...
If P=(Q(R−T)15)13, make T the subject of the formula....
In diagram above, QR//TU, < PQR = 80° and < PSU = 95°. Calculate < SUT. ...