Advertisements
Advertisements
प्रश्न
If three coins are tossed simultaneously, find the probability of the following events.
Event B: To get at least two heads.
बेरीज
Advertisements
उत्तर
Sample space,
S = {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}
∴ n(S) = 8
Let B be the event of getting at least two heads.
∴ B = {HHH, HHT, HTH, THH}
∴ n(B) = 4
∴ `P(B) = (n(B))/(n(S))`
∴ `P(B) = 4/8`
∴ `P(B) = 1/2`
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
