Question

Find mean, median, mode. Class intervals;10,30,50,70,90. Frequency:7,11,10,9,3​

Answer 1

10-30 20 5 100

30-50 40 8 320

50-70 60 12 720

70-90 80 20 1600

90-110 100 3 300

110-130 120 2 240

Σf

i

=50 Σf

i

x

i

=3280

Hope it helps you ☺️❤️

Answer 2

Step-by-step explanation:

Class interval x

i

Frequency

(f

i

) f

i

x

i

10-30 20 5 100

30-50 40 8 320

50-70 60 12 720

70-90 80 20 1600

90-110 100 3 300

110-130 120 2 240

Σf

i

=50 Σf

i

x

i

=3280