Waec Further Mathematics Past Questions and Answers

Question 481:

• WAEC 2011

Find the standard deviation of the numbers 3,6,2,1,7 and 5.

A. 2.00
B. 2.16
C. 2.50
D. 2.56

Question 482:

• WAEC 2011

Marks	5-7	8-10	11-13	14-16	17-19	20-22
No of students	4	7	26	41	14	8

The table above shows the distribution of marks of students in a class. Find the upper class boundary of the modal class.

A. 13.5
B. 16
C. 16.5
D. 22.5

Question 483:

• WAEC 2011

If \(^{3x}C_{2} = 15\), find the value of x?

A. 2
B. 4
C. 5
D. 6

Question 484:

• WAEC 2011

Four doctors and two nurses are to sit round a circular table. In how many ways can this be done if the nurses are to sit together?

A. 48
B. 60
C. 240
D. 720

Question 485:

• WAEC 2011

A basket contains 3 red and 1 white identical balls. A ball is drawn from the basket at random. Calculate the probability that it is either white or red.

A. \(\frac{1}{3}\)
B. \(\frac{1}{2}\)
C. \(\frac{3}{4}\)
D. 1