Probability What is the probability of getting a head when tossing a fair coin once?a) 0b) 1c) 1/2d) 1/3Answer: c If a die is rolled once, what is the probability of getting an even number?a) 1/2b) 1/3c) 2/3d) 1/6Answer: a In probability, the sum of all possible event probabilities in an experiment is always:a) 0b) […]
Statistics What is the formula for the mean of grouped data using the direct method?a) x=∑f∑xx = frac{sum f}{sum x} b) x=∑fx∑fx = frac{sum fx}{sum f} c) x=∑f2∑fxx = frac{sum f^2}{sum fx} d) x=∑x∑fx = frac{sum x}{sum f} x=∑f∑xAnswer: b The sum of the frequencies in a frequency distribution is called:a) Modeb) Medianc) Cumulative frequencyd)
Surface Areas and Volumes What is the formula for the volume of a sphere with radius r? a) 43πr3 b) πr2 c) 4πr3 d) πr3 Answer: a) 43πr3 What is the total surface area of a cube with edge a? a) 6 a b) 6a2 c) a3 d) 2a2 Answer: b) 6a2 Which of the following is the
Surface Areas and Volumes Read More »
Areas Related to Circles What is the formula for the area of a circle with radius r? a) πr3 b) 2πr c) πr2 d) πr2 Answer: c) πr2 What is a sector of a circle?a) A part of a circle enclosed by two radii and an arcb) A chord of
Areas Related to Circles Read More »
Circles How many tangents can a circle have?a) 1b) 2c) Infinited) NoneAnswer: c) Infinite What is the point where a tangent touches a circle called?a) Radiusb) Chordc) Diameterd) Point of contactAnswer: d) Point of contact What is the line called that intersects a circle at exactly one point?a) Secantb) Tangentc) Diameterd) RadiusAnswer:
Some Applications of Trigonometry What is the line drawn from the observer’s eye to the object being viewed called?(A) Line of sight(B) Height line(C) Base line(D) Angle lineAnswer: (A) What is the angle called when an observer raises their head to look at an object?(A) Angle of depression(B) Angle of elevation(C) Right angle(D) Radius angleAnswer:
Some Applications of Trigonometry Read More »
Introduction to Trigonometry The value of sin 30° is:(A) 1(B) 1/2(C) √3/2(D) 0Answer: (B) 1/2 The value of cos 0° is:(A) 1(B) 0(C) -1(D) √2Answer: (A) 1 The value of tan 45° is:(A) 0(B) 1(C) √3(D) 1/√3Answer: (B) 1 If sin A = 3/5, what is the value of cos A?(A) 4/5(B) 5/3(C) 1/2(D) 3/4Answer:
Introduction to Trigonometry Read More »
Coordinate Geometry What is the x-coordinate of a point called?a) Ordinateb) Abscissac) Distanced) SlopeAnswer: b What is the distance of a point from the x-axis called?a) Slopeb) Radiusc) Ordinated) AbscissaAnswer: c The coordinates of a point on the x-axis are in which form?a) (x, 0)b) (0, y)c) (x, y)d) (y, x)Answer: a Which theorem
Coordinate Geometry Read More »
Triangles All circles areA) CongruentB) SimilarC) BothD) NeitherAnswer: B All squares areA) CongruentB) SimilarC) BothD) NeitherAnswer: B All equilateral triangles areA) CongruentB) SimilarC) BothD) NeitherAnswer: C Two polygons of the same number of sides are similar if their corresponding angles areA) EqualB) UnequalC) CongruentD) ProportionalAnswer: A The corresponding sides of similar polygons areA) UnequalB)
Quadratic Equations What is the standard form of a quadratic equation?a) ax + b = 0b) ax² + bx + c = 0c) ax² = cd) ax³ + bx² + c = 0Answer: b In a quadratic equation, what must be true about the coefficient of x2x^2 (a)?a) a = 0b) a < 0c)
Quadratic Equations Read More »