Question

Find mode class interval below10,below 20, below30,below40,below50,below60,below70and below80and frequency 5,13,20,32,60,80,90,100​

Answer 1

Step-by-step explanation:

class , x , commutative frequency, frequency

below 10. 5 5. 5-0=5

below 20. 15 13. 13-5=8

below30. 25 20. 20-13= 7

below 40. 35 32. 32-20=12

below 50. 45 60.=C 60-32= 28

below 60 55. 80. 80-60=20

below 70. 65. 90. 90-80=10

below80. 75 100 100-90=10

mean = £Fx/ £ F= ( 25+120+175+420+460+1100+650+750)/100=3700/100=37

N= 100( EVEN)

median = 1/2{(N/2 )term +( N/2+1) term}

= 1/2( 50th term + 51 th term )

=1/2( 45+45)= 45

MODE = 3 Median - 2 Mean

= 3x 45 - 2x 37

= 135-74

= 61 answer