5 Students Of A Class Have An Average Height 150 Cm And Variance 18 Cm^2. A New Student, Whose Height Is 156 Cm. Joined Them.
3 Years Ago
Contribute & Test Your Skills
- Sets, Relations & Functions
- Complex Numbers & Quadratic Equations
- Matrices & Determinants
- Mathematical Reasoning
- Mathematical Induction
- Permutations & Combinations
- Sequences & Series
- Continuity
- Integral Calculus
- Differential Equations
- Binomial Theorem
- Co-Ordinate Geometry
- Vector Algebra
- Three Dimensional Geometry
- Statistics & Probability
- Trigonometry
- Differentiability
- Functions
- Limits
- Differentiation
- Application of Derivative
- Difinite Integrals
- Area Under The Curve
- Indices & Surds
- Partial Fractions
- Quadratic Equation
- Exponential Logarithmic Series
- Binary Operations
- Computing
- Regular Cartesian Coordinate
- Straight Lines
- Ellipse
- Hyperbola
- Parabola
- Height & Distances
- Inverse Trigonometrical Functions
- Hyperbolic Functions
- Correlation Regression
- Measure of Central Tendency
- Statistics
- Numerical Methods
- Linear Programming
Popular Questions
- if for some x e r, the frequency distribution of the marks obtained by 20 students in test is:
- if the sum sum of the deviations of 50 observations from 30 is 50, then the mean of these observations is:
- A particle is thrown vertically upwards with velocity 24.5 cm/min. It will return to the original position after
- The mean and the variance of five observations are 4 and 5.20,
- Resultant velocity of two velocities 30 km/h and 60 km/h making an angle 60 degree with each other is
- there are m mem and two women participating in a chess tournament. each participant
- A student scores the following makes in five tests: 45, 54, 41, 57, 43.
- the mean of five observations is 5 and their variance is 9.20. if there of the given five observations are 1, 3
- Should I go out of India and study after the pandemic?
- A data consists of observations:
- 5 students of a class have an average height 150 cm and variance 18 cm^2. A new student, whose height is 156 cm. joined them.
- A bag contains 30 white balls and 10 red balls. 16 balls are drawn oneby one randomly from bag with replacement,
- if the data x1, x2,..........,x10 is such that the mean of first four of these is 11,
- A data consists of observations:
- A data consists of observations:
- IB Online Tuitions For Chemistry (HL), Biology (HL) & Mathematics (HL)
- A particle is thrown vertically upwards with a velocity of 490 cm/s. It will return to this position after
- if twolike parallel forces P/Q N and q/p have a resultant 2N, then
- A particle is moving in a straight line with uniform velocity. Its acceleration is
- Three forces P, Q, R acting at a point in a plane. The angle between P and Q, Q and R are 150 degree and 120 degree respectively, ..
- Two bodies of masses m and 4m are moving with equal momentum. The ratio of their KE is
- A particle moves in a straight line so that it covered a distance
- Three forces of magnitudes 30, 60 and P acting at a point are in equilibrium. If the angle between the first two is 60 degree, the..
- A particle starting from a point A and moving with a positive constant acceleration along a straight line reaches another point B ..
- Forces of magnitudes 5 N, 10 N, 15 N and 20 N act on a particle in the direction of North, South, East and West, respectively. The..
- A ball is dropped from a height h above a horizontal plane. If the coefficient of restitution is e, through what height will the b..
- The amount of force that is needed to accelerate a truck of mass 36000 kg from rest to a velocity of 60 km/h in 20 s is
- A train of length 200 m, travelling at 30 m/s overtakes another train of length 300 m, travelling at 20 m/s in the same direction...
- the mean and median of the following ten number in increasing order
- if the standard deviations of the numbers
- the outcome of each of 30 items was observed; 10 items
- A particle is dropped from a height 12 g m and 4 s after another particle is projected from the ground towards it with a velocity ..
- if mean and standard deviations of 5 observations
- The mean and variance of seven observations are 8 and 16,
- if both the mean and the statement deviations of 50 observations
- The acceleration of a particle starting from rest moving in a straight line with uniform acceleration is 8 m/s^2. The time taken b..
- If 3P and 4P are resultant of a force 5P, then angle between 3P and 5P is
- If in a projectile motion range R is maximum, then relation between H and R is
- If two equal components (P) of a force (F) are acting at an angle 120 degree , then F is equal to
- If the displacement, velocity and acceleration of a particle at time t is x, v and f respectively, then which one is correct?
