Correlation indicates a joint relationship between two variables 'is said by
Ferguson
Lathrop
Skinner
Crowder
If the mental age of Peter is 15 yr and chronological age is 12 yr, then what will be the IQ of Peter?
80
125
100
115
Which one is correct for the following data?
-1,3,2,0,1,6,8,5,10,11,5
Mean= Median =Mode
Mean= Mode
Mode= Median
Mean= 5
The 200 tickets of a lottery were sold in which there was prize on 10 tickets. If Monica has purchased one ticket, what is the probability of winning a prize?
0.0005
0.05
0.005
Characteristics of a good textbook of Mathematics should be
there are many solved examples and some questions of exercise
there are sufficient solved illustrations and more questions of exercise
all the exercise questions are solved
All of the above
A number gets reduced to one-third when 48 is subtracted from it. What will be two-third of that number?
24
72
96
None of these
B.
72
Let the number be x
According to question,
x-48=
3x - 48X3 = x
3x - x = 144
2x = 144
x= 72
Hence the original number is 72
The total adults in a city are 6000. The various sections of them are indicated below.
I employes in the public sector
II employes in the private sector
III employes in the corporate sector
IV self employed
V unemployed
What percentage of the employed persons is self employed?
20
5