a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary.
Sahay Sir > Question Answers > a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary.
Assertion : For angular projection when angle of projection θ = tan^-1(1) the horizontal range is four times the maximum height. Reason : The horizontal range of projectile is directly proportional to square of velocity and inversely proportional to acceleration due to gravity.
17
Oct
Assertion : For angular projection when angle of projection θ = tan^-1(1) the horizontal range is four times the maximum height. Reason : The horizontal range of projectile is directly proportional to square of velocity and inversely proportional to acceleration due to gravity. 1. In a cricket match a batswoman hits a boundary 6 times [...]
ASSERTION Generally the path of a projectile from the earth is parabolic but it is elliptical for projectiles going to a very great height. REASON Up to ordinary height the projectile moves under a uniform gravitational force, but at great heights, projectile moves under a variable force.
17
Oct
ASSERTION Generally the path of a projectile from the earth is parabolic but it is elliptical for projectiles going to a very great height. REASON Up to ordinary height the projectile moves under a uniform gravitational force, but at great heights, projectile moves under a variable force. 1. In a cricket match a batswoman hits [...]
The position of a particle moving in the xy-plane at any time t is given by x=(3t^2 -6t) m , y=( t^2 -2t) m. Select the correct statement about the moving particle from following . a) The acceleration of the particle is zero at t=0 second b) The velocity of the particle is zero at t=0 second c)The velocity of the particle is zero at t=1 second d)The velocity and acceleration of particle are never zero
17
Oct
The position of a particle moving in the xy-plane at any time t is given by x=(3t^2 -6t) m , y=( t^2 -2t) m. Select the correct statement about the moving particle from following . a) The acceleration of the particle is zero at t=0 second b) The velocity of the particle is zero at [...]
Statement-1 : The relative velocity between any two bodies moving in opposite direction is equal to sum of the velocities of two bodies. Statement-2 : Sometimes relative velocity between two bodies is equal to difference in velocities of the two bodies.
17
Oct
Statement-1 : The relative velocity between any two bodies moving in opposite direction is equal to sum of the velocities of two bodies. Statement-2 : Sometimes relative velocity between two bodies is equal to difference in velocities of the two bodies. 1. In a cricket match a batswoman hits a boundary 6 times out of [...]
11. Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg): 4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00 Find the probability that any of these bags chosen at random contains more than 5 kg of flour.
17
Oct
11. Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg): 4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00 Find the probability that any of these bags chosen at random contains more than 5 kg of flour. 1. In a cricket match 11. Eleven [...]
10. Activity : Ask all the students in your class to write a 3-digit number. Choose any student from the room at random. What is the probability that the number written by her/him is divisible by 3? Remember that a number is divisible by 3, if the sum of its digits is divisible by 3.
17
Oct
10. Activity : Ask all the students in your class to write a 3-digit number. Choose any student from the room at random. What is the probability that the number written by her/him is divisible by 3? Remember that a number is divisible by 3, if the sum of its digits is divisible by 3. [...]
8. Refer to Q.2, Exercise 14.2. What is the empirical probability that an engineer lives: (i) less than 7 km from her place of work? (ii) more than or equal to 7 km from her place of work? (iii) Within ½ km from her place of work?
17
Oct
8. Refer to Q.2, Exercise 14.2. What is the empirical probability that an engineer lives: (i) less than 7 km from her place of work? (ii) more than or equal to 7 km from her place of work? (iii) Within ½ km from her place of work? 1. In a cricket match 8. Refer to [...]
7. To know the opinion of the students about the subject statistics, a survey of 200 students was conducted. The data is recorded in the following table. Opinion Number of students like 135 dislike 65 Find the probability that a student chosen at random (i) likes statistics, (ii) does not like it.
17
Oct
7. To know the opinion of the students about the subject statistics, a survey of 200 students was conducted. The data is recorded in the following table. Opinion Number of students like 135 dislike 65 Find the probability that a student chosen at random (i) likes statistics, (ii) does not like it. 1. In a [...]
5. An organisation selected 2400 families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below: Suppose a family is chosen. Find the probability that the family chosen is (i) earning ₹10000 – 13000 per month and owning exactly 2 vehicles. (ii) earning ₹16000 or more per month and owning exactly 1 vehicle. (iii) earning less than ₹7000 per month and does not own any vehicle. (iv) earning ₹13000 – 16000 per month and owning more than 2 vehicles. (v) owning not more than 1 vehicle.
17
Oct
5. An organisation selected 2400 families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below: Suppose a family is chosen. Find the probability that the family chosen is (i) earning ₹10000 – 13000 per month [...]
1. In a cricket match, a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary.
17
Oct
1. In a cricket match, a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary. 1. In a cricket match a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a [...]