Question

what is least squares? ​

Answer 1

Answer:

0

Step-by-step explanation:

the least square is 0(0*0=0)

Answer 2

$\Huge\bold\green{Question?:}$

what is least squares?

$\Huge\bold\red{Answer:}$

ʟᴇᴀꜱᴛ ꜱQᴜᴀʀᴇꜱ ᴍᴇᴀɴ. ᴛʜɪꜱ ɪꜱ ᴀ ᴍᴇᴀɴ ᴇꜱᴛɪᴍᴀᴛᴇᴅ ꜰʀᴏᴍ ᴀ ʟɪɴᴇᴀʀ ᴍᴏᴅᴇʟ. ɪɴ ᴄᴏɴᴛʀᴀꜱᴛ, ᴀ ʀᴀᴡ ᴏʀ ᴀʀɪᴛʜᴍᴇᴛɪᴄ ᴍᴇᴀɴ ɪꜱ ᴀ ꜱɪᴍᴘʟᴇ ᴀᴠᴇʀᴀɢᴇ ᴏꜰ ʏᴏᴜʀ ᴠᴀʟᴜᴇꜱ, ᴜꜱɪɴɢ ɴᴏ ᴍᴏᴅᴇʟ. ʟᴇᴀꜱᴛ ꜱQᴜᴀʀᴇꜱ ᴍᴇᴀɴꜱ ᴀʀᴇ ᴀᴅᴊᴜꜱᴛᴇᴅ ꜰᴏʀ ᴏᴛʜᴇʀ ᴛᴇʀᴍꜱ ɪɴ ᴛʜᴇ ᴍᴏᴅᴇʟ (ʟɪᴋᴇ ᴄᴏᴠᴀʀɪᴀᴛᴇꜱ), ᴀɴᴅ ᴀʀᴇ ʟᴇꜱꜱ ꜱᴇɴꜱɪᴛɪᴠᴇ ᴛᴏ ᴍɪꜱꜱɪɴɢ ᴅᴀᴛᴀ.

Additional information

ꜱᴛᴇᴘ 1: ꜰᴏʀ ᴇᴀᴄʜ (x,ʏ) ᴘᴏɪɴᴛ ᴄᴀʟᴄᴜʟᴀᴛᴇ x2 ᴀɴᴅ xʏ.

ꜱᴛᴇᴘ 2: ꜱᴜᴍ ᴀʟʟ x, ʏ, x2 ᴀɴᴅ xʏ, ᴡʜɪᴄʜ ɢɪᴠᴇꜱ ᴜꜱ Σx, Σʏ, Σx2 ᴀɴᴅ Σxʏ (Σ ᴍᴇᴀɴꜱ "ꜱᴜᴍ ᴜᴘ")

ꜱᴛᴇᴘ 3: ᴄᴀʟᴄᴜʟᴀᴛᴇ ꜱʟᴏᴘᴇ ᴍ:

ᴍ = ɴ Σ(xʏ) − Σx Σʏ ɴ Σ(x2) − (Σx)2

ꜱᴛᴇᴘ 4: ᴄᴀʟᴄᴜʟᴀᴛᴇ ɪɴᴛᴇʀᴄᴇᴘᴛ ʙ:

ʙ = Σʏ − ᴍ Σx ɴ.

ꜱᴛᴇᴘ 5: ᴀꜱꜱᴇᴍʙʟᴇ ᴛʜᴇ ᴇQᴜᴀᴛɪᴏɴ ᴏꜰ ᴀ ʟɪɴᴇ.

Thank you✌️❣️✌️