Statistics - Mathematics Jamb Past Questions and Answers

Question 16 :

• JAMB 2018

A box contains two red balls and four blue balls. A ball is drawn at random from the box and then replaced before a second ball is drawn. Find the probability of drawing two red balls.

A. \(\frac{2}{3}\)
B. \(\frac{1}{3}\)
C. \(\frac{1}{4}\)
D. \(\frac{1}{9}\)

Question 17 :

• JAMB 2018

What is the modal age?

A. 4
B. 5
C. 6
D. 7

Question 18 :

• JAMB 2018

Tossing a coin and rolling a die are two separate events. What is the probability of obtaining a tail on the coin and an even number on the die?

A. \(\frac{1}{16}\)
B. \(\frac{1}{6}\)
C. \(\frac{1}{4}\)
D. \(\frac{3}{8}\)

Question 19 :

• JAMB 2018

How many children are in the hospital

A. 36
B. 40
C. 44
D. 50

Question 20 :

• JAMB 2018

Find the average of the first four prime numbers greater than 10

A. 20
B. 19
C. 17
D. 15