when a coin is randomly selected from a saving box, each coin has a 98% chance of not being selected. How many coins are in the savings box?
Answers
ʟᴀsᴛ ᴜᴘᴅᴀᴛᴇᴅᴊᴜʟ 31, 2016
4.3: ᴛʜᴇ ʙɪɴᴏᴍɪᴀʟ ᴅɪsᴛʀɪʙᴜᴛɪᴏɴ
5: ᴄᴏɴᴛɪɴᴜᴏᴜs ʀᴀɴᴅᴏᴍ ᴠᴀʀɪᴀʙʟᴇs
ᴘɪᴄᴛᴜʀᴇ_ᴀs_ᴘᴅғ
ʀᴇᴀᴅᴀʙɪʟɪᴛʏ
ᴅᴏɴᴀᴛᴇ
ᴛʜᴇsᴇ ᴀʀᴇ ʜᴏᴍᴇᴡᴏʀᴋ ᴇxᴇʀᴄɪsᴇs ᴛᴏ ᴀᴄᴄᴏᴍᴘᴀɴʏ ᴛʜᴇ ᴛᴇxᴛᴍᴀᴘ ᴄʀᴇᴀᴛᴇᴅ ғᴏʀ "ɪɴᴛʀᴏᴅᴜᴄᴛᴏʀʏ
sᴛᴀᴛɪsᴛɪᴄs
" ʙʏ sʜᴀғᴇʀ ᴀɴᴅ ᴢʜᴀɴɢ.
4.1: ʀᴀɴᴅᴏᴍ ᴠᴀʀɪᴀʙʟᴇs
ʙᴀsɪᴄ
ᴄʟᴀssɪғʏ ᴇᴀᴄʜ
ʀᴀɴᴅᴏᴍ ᴠᴀʀɪᴀʙʟᴇ
ᴀs ᴇɪᴛʜᴇʀ ᴅɪsᴄʀᴇᴛᴇ ᴏʀ
ᴄᴏɴᴛɪɴᴜᴏᴜs
.
ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴀʀʀɪᴠᴀʟs ᴀᴛ ᴀɴ ᴇᴍᴇʀɢᴇɴᴄʏ ʀᴏᴏᴍ ʙᴇᴛᴡᴇᴇɴ ᴍɪᴅɴɪɢʜᴛ ᴀɴᴅ 6:00ᴀ.ᴍ6:00ᴀ.ᴍ.
ᴛʜᴇ ᴡᴇɪɢʜᴛ ᴏғ ᴀ ʙᴏx ᴏғ ᴄᴇʀᴇᴀʟ ʟᴀʙᴇʟᴇᴅ “1818ᴏᴜɴᴄᴇs.”
ᴛʜᴇ ᴅᴜʀᴀᴛɪᴏɴ ᴏғ ᴛʜᴇ ɴᴇxᴛ ᴏᴜᴛɢᴏɪɴɢ ᴛᴇʟᴇᴘʜᴏɴᴇ ᴄᴀʟʟ ғʀᴏᴍ ᴀ ʙᴜsɪɴᴇss ᴏғғɪᴄᴇ.
ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴋᴇʀɴᴇʟs ᴏғ ᴘᴏᴘᴄᴏʀɴ ɪɴ ᴀ 11-ᴘᴏᴜɴᴅ ᴄᴏɴᴛᴀɪɴᴇʀ.
ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴀᴘᴘʟɪᴄᴀɴᴛs ғᴏʀ ᴀ ᴊᴏʙ.
ᴄʟᴀssɪғʏ ᴇᴀᴄʜ
ʀᴀɴᴅᴏᴍ ᴠᴀʀɪᴀʙʟᴇ
ᴀs ᴇɪᴛʜᴇʀ ᴅɪsᴄʀᴇᴛᴇ ᴏʀ
ᴄᴏɴᴛɪɴᴜᴏᴜs
.
ᴛʜᴇ ᴛɪᴍᴇ ʙᴇᴛᴡᴇᴇɴ ᴄᴜsᴛᴏᴍᴇʀs ᴇɴᴛᴇʀɪɴɢ ᴀ ᴄʜᴇᴄᴋᴏᴜᴛ ʟᴀɴᴇ ᴀᴛ ᴀ ʀᴇᴛᴀɪʟ sᴛᴏʀᴇ.
ᴛʜᴇ ᴡᴇɪɢʜᴛ ᴏғ ʀᴇғᴜsᴇ ᴏɴ ᴀ ᴛʀᴜᴄᴋ ᴀʀʀɪᴠɪɴɢ ᴀᴛ ᴀ ʟᴀɴᴅғɪʟʟ.
ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴘᴀssᴇɴɢᴇʀs ɪɴ ᴀ ᴘᴀssᴇɴɢᴇʀ ᴠᴇʜɪᴄʟᴇ ᴏɴ ᴀ ʜɪɢʜᴡᴀʏ ᴀᴛ ʀᴜsʜ ʜᴏᴜʀ.
ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴄʟᴇʀɪᴄᴀʟ ᴇʀʀᴏʀs ᴏɴ ᴀ ᴍᴇᴅɪᴄᴀʟ ᴄʜᴀʀᴛ.
ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴀᴄᴄɪᴅᴇɴᴛ-ғʀᴇᴇ ᴅᴀʏs ɪɴ ᴏɴᴇ ᴍᴏɴᴛʜ ᴀᴛ ᴀ ғᴀᴄᴛᴏʀʏ.