Three fair coins are tossed. If both heads an | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(c) Since both heads and tails appears, so

$n(S) = \{ HHT,\,HTH,\,THH,\,HTT,\,THT,\,TTH\} $

$n(E) = \{ HTT,\,THT,\,TTH\} $

Hence required pro

Vedclass · Accepted Answer

$\frac{1}{2}$

Vedclass · Answer

(c) Since both heads and tails appears, so

$n(S) = \{ HHT,\,HTH,\,THH,\,HTT,\,THT,\,TTH\} $

$n(E) = \{ HTT,\,THT,\,TTH\} $

Hence required probability $ = \frac{3}{6} = \frac{1}{2}.$

Three fair coins are tossed. If both heads and tails appears, then the probability that exactly one head appears, is

Similar Questions

If $E$ and $F$ are events with $P\,(E) \le P\,(F)$ and $P\,(E \cap F) > 0,$ then

The probability of happening an event $A$ in one trial is $0.4$. The probability that the event $A$ happens at least once in three independent trials is

One card is drawn from a well shuffled deck of $52$ cards. If each outcome is equally likely, calculate the probability that the card will be not a black card.

Three coins are tossed. Describe Three events which are mutually exclusive and exhaustive.

The probabilities of a student getting $I, II$ and $III$ division in an examination are respectively $\frac{1}{{10}},\,\frac{3}{5}$ and $\frac{1}{4}.$ The probability that the student fails in the examination is