Question

what is probability of occurrence of an event?​

Answer 1

Probability (of an event) In an experiment, the probability of an event is the likelihood of that event occuring. Probability is a value between (and including) zero and one. If P(E) represents the probability of an event E, then: P(E) = 0 if and only if E is an impossible event.

Answer 2

• Pʀᴏʙᴀʙɪʟɪᴛʏ (ᴏғ ᴀɴ ᴇᴠᴇɴᴛ) Iɴ ᴀɴ ᴇxᴘᴇʀɪᴍᴇɴᴛ, ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ᴏғ ᴀɴ ᴇᴠᴇɴᴛ ɪs ᴛʜᴇ ʟɪᴋᴇʟɪʜᴏᴏᴅ ᴏғ ᴛʜᴀᴛ ᴇᴠᴇɴᴛ ᴏᴄᴄᴜʀɪɴɢ. Pʀᴏʙᴀʙɪʟɪᴛʏ ɪs ᴀ ᴠᴀʟᴜᴇ ʙᴇᴛᴡᴇᴇɴ (ᴀɴᴅ ɪɴᴄʟᴜᴅɪɴɢ) ᴢᴇʀᴏ ᴀɴᴅ ᴏɴᴇ. Iғ P(E) ʀᴇᴘʀᴇsᴇɴᴛs ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ᴏғ ᴀɴ ᴇᴠᴇɴᴛ E, ᴛʜᴇɴ: P(E) = 0 ɪғ ᴀɴᴅ ᴏɴʟʏ ɪғ E ɪs ᴀɴ ɪᴍᴘᴏssɪʙʟᴇ ᴇᴠᴇɴᴛ.