{2, 3, 4, 6}
{1, 2, 3, 4, 6}
{2, 3, 4, 6, 8}
{1, 2, 3, 4, 6, 8}
Correct answer is B
\(\mu\) = {1, 2, 3, 4..., 10}
X = {1, 2, 3, 4, 5, 6}
Y = {1, 2, 3, 4, 6, 8}
Therefore;
X \(\cap\) Y = {1, 2, 3, 4, 6}
Evaluate and correct to two decimal places, 75.0785 - 34.624 + 9.83
30.60
50.29
50.28
30.63
Correct answer is C
75.0785
-35.624
--------------
40.4545
+9.83
-------------
50.28 to 2d.p
Evaluate: \(\frac{0.42 \div 2.5}{0.5 \times 2.95}\), leaving the answer in the standard form.
1.639 x 10\(^2\)
1.639 x 10\(^1\)
1.639 x 10\(^{-1}\)
1.639 x 10\(^{-2}\)
Correct answer is C
\(\frac{0.42 \div 2.5}{0.5 \times 2.05} = \frac{0.168}{1.025}\)
= 1.639 x 10\(^{-1}\)
10
9
8
7
Correct answer is D
Mean = \(\frac{8 + 18 + 10 + 14 + 18 + 11 + 13 + 14 + 13 + 17 + 15 + 8 + 16 + 13}{14}\)
Mean = \(\frac{188}{14}{\)
Mean = 13.4
Number above the mean is 7
The following are scores obtained by some students in a test. Find the median score
| 8 | 18 | 10 | 14 | 18 | 11 | 13 |
| 14 | 13 | 17 | 15 | 8 | 16 | 13 |
14.5
14.0
13.5
13.0
Correct answer is C
\(\frac{13 + 14}{2}\) = 13.5