In how many ways can the letters of the word ACCEPTANCE be arranged?
10! / (2!2!3!)
10! / ( 2!3!)
10! / (2!2!)
10!
Correct answer is A
ACCEPTANCE = 10 Letters
A = 2 letters
C = 3 letters
E = 2 letters
Can be arranged in 10! / (2!3!2!) ways
Find the mean deviation of 2, 4, 5, and 9
1
2
5
7
Correct answer is B
No explanation has been provided for this answer.
If x > 0, find the range of number x-3, 3x+2,x-1, 4x, 2x-1, x-2, 2x-2, 3x and 3x+1
3x+3
3x+1
2x+5
2x+1
Correct answer is A
x-3, 3x+2,x-1, 4x, 2x-1, x-2, 2x-2, 3x, 3x+1
Range = 4x - (x-3)
= 3x + 3
Find the median of 4, 1, 4, 1, 0, 4, 4, 2 and 0
zero
1
2
4
Correct answer is C
4, 4, 1, 0, 4, 4, 2, 0
Arrange in ascending order:
0, 0, 1, 1, 2, 4, 4, 4, 4
Position of median = N+1 / 2 = 9+1 / 2 = 5th
Median = 2
What is the mean of the data t, 2t-1, t-2, 2t -1, 4t and 2t+2?
2t
2t-1
2/3t+1
2t-1/3
Correct answer is D
\(Mean = \frac{t+2t-1+t-2+2t-1+4t+2t+2}{6}\\
Mean = \frac{12t-2}{6}\\
=\frac{2(6t-1)}{6}\\
=\frac{6t-1}{3}\\
=\frac{6t}{3}- \frac{1}{3}\\
=2t-\frac{1}{3}\)