<h2>Answer- P=<u>18</u></h2>
Step-by-step explanation:
Greetings !
Firstly, find the class-midpoints (X) to solve for the mean.
Thus, mid points of each classes are
Solve, for <em>p</em><em> </em>using mean grouped data formula
multiply each values add them and solve for <em>p</em><em>.</em>
<em></em>
make a cross multiplication
subtract 270 from both sides
subtract <em>24</em><em>p</em><em> </em>from both sides
Also refer the attached image for further details
Hope it helps!