MATHEMATICS Study Mode

Try this quiz in CBT Mode

41.

The pie chart above shows the statistical distribution of 80 students in five subjects in an examination. Calculate how many students offer Mathematics.

Join or view discussions on this question
A.

40

B.

50

C.

12

D.

30

42.
Find the mean of t + 2, 2t – 4, 3t + 2 and 2t.
Join or view discussions on this question
A.
2t
B.
2t + 1
C.
t
D.
t + 1

43.
The mean of seven numbers is 10. If six of the numbers are 2, 4, 8, 14, 16 and 18, find the mode.
Join or view discussions on this question
A.
8
B.
14
C.
2
D.
6

44.
 Age 20 25 30 35 40 45 No. of people 3 5 1 1 2 3

Calculate the median age of the frequency distribution in the table above.

Join or view discussions on this question
A.

30

B.

35

C.

20

D.

25

45.

If the variance of 3 + x, 6, 4, x and 7 – x is 4 and the mean is 5, find the standard deviation.

Join or view discussions on this question
A.

2

B.

3

C.

$\sqrt{2}$

D.

$\sqrt{3}$

46.
 Score 3 4 5 6 7 8 9 10 Freq. 1 0 7 5 2 3 1 1

The table above shows the scores of 20 students in Further Mathematics test. What is the range of the distribution?

Join or view discussions on this question
A.

6

B.

3

C.

10

D.

7

47.
In how many ways can a student select 2 subjects from 5 subjects?
Join or view discussions on this question
A.

$\frac{5!}{2!2!}$

B.

$\frac{5!}{2!3!}$

C.

$\frac{5!}{2!}$

D.

$\frac{5!}{3!}$

48.

In how many ways can 3 seats be occupied if 5 people are willing to sit?

Join or view discussions on this question
A.

20

B.

5

C.

120

D.

60

49.

What is the probability that an integer x (1 ≤ x ≤ 25) chosen at random is divisible by both 2 and 3?

Join or view discussions on this question
A.

$\frac{1}{5}$

B.

$\frac{1}{25}$

C.

$\frac{3}{4}$

D.

$\frac{1}{25}$

50.

A basket contains 9 apples, 8 bananas and 7 oranges. A fruit is picked from the basket, find the probability that it is neither an apple nor an orange.

Join or view discussions on this question
A.

$\frac{1}{8}$

B.

$\frac{7}{24}$

C.

$\frac{2}{3}$

D.

$\frac{3}{8}$