Question

Find the upper limit and lower limit of class interval if class mark is 75and class size is10

Answer 1

Answer:

where is C.I so it is to calculate

Answer 2

Lower limit is 70 and upper limit is 80

Step-by-step explanation:

• Given data

        Class mark (M) =75

        Class size (h) = 10

        Half of class size $\mathbf{(b)=\frac{h}{2}=\frac{10}{2}=5}$

• We know that Lower and upper limit is equal gap from class mark.So

• Upper class limit (UCL) = M +b = 75 +5 =80

• Lower class limit (LCL) = M -b = 75 - 5 =70