5. The probability that a train leaves on time is 0.9. The probability that it leaves on time and arrives on time is 0.75. If the train leaves on time, what is the probability that it arrives on time?

Q: ₁. ᴡʜɪᴄʜ ᴏꜰ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ ʀᴇᴘʀᴇꜱᴇɴᴛꜱ ᴀ ᴅɪꜱᴄʀᴇᴛᴇ ʀᴀɴᴅᴏᴍ ᴠᴀʀɪᴀʙʟᴇ? ᴀ. ᴛʜᴇ ᴡᴇɪɢʜᴛ ɪɴ ᴋɪʟᴏɢʀᴀᴍꜱ ᴏꜰ ʀᴀɴᴅᴏ...

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