Question

both questions please

Answer 1

Answer:

Change the table from less than to C.I and find the frequencies,

Step-by-step explanation:mode=l+ [n/2-cf/f] *h

N/2 =80/2=40

Therefore, modal class= 40-50

Mode= 40+[ 40-36/20] * 10

Mode= 40+ 1/5*10

= 40+2

Mode= 42