Question

Hello everyone please I need help with this question quickly!

Answer 1

Answer:

112.93

Explanation:

$\sf \boxed{\sf Mean= \frac{interval \ midpoint \ x \ frequency }{Total \ Frequency} }$

Solving Stepwise:

$\rightarrow \sf \dfrac{37.5 \ x \ 100 \ + \ 75 \ x \ 45 \ + \ 125 \ x \ 67 \ + \ 175 \ x \ 50 \ + \ 225 \ x \ 0 \ + \ 275 \ x \ 12 \ + \ 325 \ x \ 16 }{100 + 45 +67+50+0+12+16}$

$\rightarrow \sf \dfrac{32750}{290}$

$\rightarrow \sf \dfrac{3275}{29}$

$\rightarrow \sf 112.9310345$

$\rightarrow \sf 112.93 \ (rounded \ to \ nearest \ 2 \ decimal \ places)$