සම්භාවිතාවය දන්න කෙනෙක්, help me
A die is rolled and a coin is tossed, find the probability that the die shows an odd number and the coin shows a head.
A coin is tossed twice. What is the probability of getting two consecutive tails ?
Consider another example where a pack contains 4 blue, 2 red and 3 black pens. If a pen is drawn at random from the pack, replaced and the process repeated 2 more times, What is the probability of drawing 2 blue pens and 1 black pen?
A pack contains 4 blue, 2 red and 3 black pens. If 2 pens are drawn at random from the pack, NOT replaced and then another pen is drawn. What is the probability of drawing 2 blue pens and 1 black pen?
In a class, 40% of the students study maths and science. 60% of the students study maths. What is the probability of a student studying science given he/she is already studying maths?
A single coin is tossed 5 times. What is the probability of getting at least one head?
When two dice are rolled, find the probability of getting a greater number on the first die than the one on the second, given that the sum should equal 8.
An urn B1 contains 2 white and 3 black balls and another urn B2 contains 3 white and 4 black balls. One urn is selected at random and a ball is drawn from it. If the ball drawn is found black, find the probability that the urn chosen was B1.
ලගදි සා/පෙ, උ/පෙ කරපු කෙනෙක් වෙතොත් මේ ටික කටුවට හදල එවන්නකෝ... ප්ලීස්
A die is rolled and a coin is tossed, find the probability that the die shows an odd number and the coin shows a head.
A coin is tossed twice. What is the probability of getting two consecutive tails ?
Consider another example where a pack contains 4 blue, 2 red and 3 black pens. If a pen is drawn at random from the pack, replaced and the process repeated 2 more times, What is the probability of drawing 2 blue pens and 1 black pen?
A pack contains 4 blue, 2 red and 3 black pens. If 2 pens are drawn at random from the pack, NOT replaced and then another pen is drawn. What is the probability of drawing 2 blue pens and 1 black pen?
In a class, 40% of the students study maths and science. 60% of the students study maths. What is the probability of a student studying science given he/she is already studying maths?
A single coin is tossed 5 times. What is the probability of getting at least one head?
When two dice are rolled, find the probability of getting a greater number on the first die than the one on the second, given that the sum should equal 8.
An urn B1 contains 2 white and 3 black balls and another urn B2 contains 3 white and 4 black balls. One urn is selected at random and a ball is drawn from it. If the ball drawn is found black, find the probability that the urn chosen was B1.
ලගදි සා/පෙ, උ/පෙ කරපු කෙනෙක් වෙතොත් මේ ටික කටුවට හදල එවන්නකෝ... ප්ලීස්
its ok, thanks for reply,
