1
GATE CE 2008
MCQ (Single Correct Answer)
+1
-0.3
Three values of $$x$$ and $$y$$ are to be fitted in a straight line in the form $$y=a+bx$$ by the method of least squares. Given $$\,\,\,\sum x = 6,\,\,\sum y = 21,\,\,\sum {{x^2} = 14,\,\,\sum {xy} = 46,\,\,\,\,}$$ the values of $$a$$ and $$b$$ are respectively
A
$$2, 3$$
B
$$1, 2$$
C
$$2, 1$$
D
$$3,2$$
2
GATE CE 2007
MCQ (Single Correct Answer)
+1
-0.3
If the standard deviation of the speed of vehicles in a highway is $$8.8$$ kmph and the mean speed of the vehicles is $$33$$ kmph, the coefficient of variation in speed is
A
$$0.1517$$
B
$$0.1867$$
C
$$0.2666$$
D
$$0.3646$$
3
GATE CE 2003
MCQ (Single Correct Answer)
+1
-0.3
A box contains $$10$$ screws, $$3$$ of which are defective. Two screws are drawn at random with replacement. The probability that none of the two screws is defective will be
A
$$100$$%
B
$$50$$%
C
$$49$$%
D
none
GATE CE Subjects
Construction Material and Management
Geomatics Engineering Or Surveying
Engineering Mechanics
Transportation Engineering
Environmental Engineering
Geotechnical Engineering
Fluid Mechanics and Hydraulic Machines
General Aptitude
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12