1 |
Cot 45°=_______ |
1/2
-1/2
1/√2
1
|
2 |
Tan 90° = __________ |
1
0
Undefined
None of these
|
3 |
1 minute = __________ degree |
1/60
60
1/3600
3600
|
4 |
In a unit circle, cosθ = ___________ |
y
x
y/x
None of these
|
5 |
To find the public opinion or trend the most suitable statistics is: |
Mean
Median
Mode
Variance
|
6 |
In a set of observation. 5,5,7,9,9,9,9,11,11,11,11,12,12 the mode is: |
9
11
Both 9 and 11
None of these
|
7 |
The sum of 30 observations is 1500. Its average will be: |
1500
150
15
None of these
|
8 |
The average pocket money of 30 students is Rs.20/- , The total amount in the class is: |
Rs.20/-
Rs.30/-
Rs.300/-
Rs.600/-
|
9 |
In a set of data, the difference between highest value and lowest value is called: |
Standard deriation
Range
Dispersion
All of these
|
10 |
The square of standard deriation : |
Standard deriation
Range
Dispersion
Variance
|
11 |
In the given set of data 5,5,5,5,5,5,5 the standard deriation is: |
5
0
7
None of these
|
12 |
In the given set of data 5,7,7,5,3,7,2,8,2 mode is: |
9
5
2
7
|
13 |
The reciprocal of Arithematic mean of reciprocal of values is called: |
Average
Harmonic mean
Geometric mean
None of these
|
14 |
The measure of central tendency which is not affected by extreme values is called: |
Median
Arithmetic mean
Geometric mean
None of these
|
15 |
In a set of data 41,43,47,51,57,52 ,59 median is: |
51
47
52
None of these
|