In a bivariate regression equation of Y on X consisting of 20 observations, the explained and unexplained variations are 40 and 60 respectively. Calculate the standard error for the same.
The perimeter of a square field is 10 cm more than the perimeter of a rectangle. The length of the rectangle is 60 cm which is 80% of its width. If a st...
A cylinder is inscribed in a sphere. The radius of the sphere is 4/5 times the height of the cylinder. What is the ratio of the volume of the cylinder t...
The volume of water measured on a rectangular field 400m `xx` 200m is 8000 . Find the depth (amount) of rain that has fallen.
If the area of a triangle is 864 cm2 and base: corresponding altitude is 3:4, then the altitude of the triangle is:
On a rectangular wall of length 24 metres and height 19 metres, there is a window in the shape of triangle surmounted on a square. If the base of triang...
A cuboid has dimensions 6 cm, 8 cm, and 10 cm. What is the length of the diagonal of the cuboid?
A semicircular sheet of metal of diameter 20cm is bent into an open conical cup. the capacity of the cup is. Use π = 22/7 (in cm 3 )
There's a cone of height 12cm out of which a smaller cone with the same vertex and vertical axis is cut out. What is the ratio of the volume of the larg...
The area of a square is 441 square centimeters whose side is half the radius of a circle The circumference of a circle is equal to the width of a rectan...
