Question

Value of Σfx is 180, A= 22, and the width of the class interval is 5, arithmetic mean is 120 then observations is _____.

Answer 1

$\huge{\boxed{\mathcal\pink{\fcolorbox{red}{blue}{..!!Hello Dear!!...}}}}$${\bold{\huge{\blue{\underline{\red{...!!!!!A}\green{ns}\purple{wer}\orange{!!!!!...}}}}}}$

━━━━━━━━━━━━━━━━━━━━━━

$\huge\bold\purple{{observation\:is\:30}}$

━━━━━━━━━━━━━━━━━━━━━━