Question

Please solve this sum of Q. 5
See the attachment

Answer 1

Answer:

p= 8

Step-by-step explanation:

Freq = 4*5+6*10+9*10+10*7+15*p

==> 20+60+90+70+15p

==> 240+15p

f= 5+ 10+ 10 +7 +p=32+p

now mean is 9 = frequency/ f

9 = 240+15p/32+p

288+9p = 240 +15p

288-240 = 15p-9p

48 = 6p

p =48/6 =8

i hope it helps u

Answer 2

Answer:

xi. fi. fixi

4. 5. 20

6. 10. 60

9. 10. 90

10. 7. 70

15. p. 15p

32. 230+15p

32=230+15p

32-230=15p

-198=15p

p=-198/15=112.2

the value of p=112.2