Width of class interval x-y is 25 possible value of x and y is
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Answer:
Let Lower Limit be L
∴ Upper Limit =L+10 [ Since, Class Width =10]
Now, we know that
ClassMark=(LowerLimit+UpperLimit)÷2
∴ (L+L+10)÷2=25 [Class Mark 25 given]
⇒ 2L+10=50
⇒ 2L=40
⇒ L=20
∴ Lower Limit of the class =20
Upper Limit of the class =20+10=30
The required class is 20−30
Step-by-step explanation:
sorry if answer is wrong
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