Skip to content
Philoid
Browse Saved
Back to chapter
Maths
13. Probability
Home · Class 11 · Maths · Ref. Book · 13. Probability
Prev
Next
Q1 of 54 Page 320

A bag contains 3 red balls and 5 black balls. A ball is selected at random from the bag. What is the probability that the ball selected is

not red ?

As we know,

⇒ P(Not Red) = 1 – P(Red)


⇒ P(Not Red) =


⇒ P(Not Red) =


∴ Probability that the ball selected is not red = .


More from this chapter

All 54 →
8

What is the probability of selection out a red king from a deck of cards?

1

A bag contains 3 red balls and 5 black balls. A ball is selected at random from the bag. What is the probability that the ball selected is

red ?

2

A box contains 5 red marbles. 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be

red?

2

A box contains 5 red marbles. 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be

white?

Questions · 54
13. Probability
1 1 1 1 1 2 2 2 2 3 4 4 5 5 5 5 6 7 7 7 8 1 1 2 2 2 3 3 4 5 5 5 5 6 6 6 6 6 6 7 7 8 9 10 10 10 11 12 12 13 13 14 15 15
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved