Mathematics Definitions and Formula

Q. 41. T.S.A of a cone =

Q. 42. Volume of sphere =

Q. 43. Surface area of a sphere = 4

Q. 44. Volume of a hemi sphere =

Q. 45. C.S.A of a hemisphere = 2

Q. 46. T.S.A of a hemisphere = 3

Q. 47. Volume of a frustum =

Q. 48. C.S.A of a frustum = where l =

Q. 49. T.S.A of a frustum = + + n

Q. 50. Surface area of a bucket = + where is the radius of the base (open at the top)

STATISTICS :

Q. 51. Mean ( (direct method )

Q. 52. Mean ( x c (step derivation method)

Q. 53. Median =

Q. 54. Mode = where ; where ;

Q. 55. Less than cum frequency -(upper limit, c.f)
More than cum .frequency -(lower limit , c.f)

Q. 56. Probability : P(E) =

Q. 57. Cards.



King, queen, jack are face cards.

Q. 58. 3 coins
H H H
T H H
H T H
H H T
T T T
H T T
T H T
T T H

Q. 59. 2 coins (H,H) (H,T) (T,H) (T,T)