Question

in di=xi-a. how to find (a) in chapter statistics for class 10? please give me a answer ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

(My humble request is that please read whatever i have written at first you will not understand but aftersome time u will get whatever i have written)

To find di= xi-a

we have to assume 'a' from the table of class mark (xi) , we need to choose the middle most number so the calculation becomes easy,

so if the number of xi is odd then it will be easier to choose middle one.

but if it is even, then b/w two middle numbers we can choose any one , it doesn't matter to which we are choosing.

in the above picture, it is the case of even

so, between 47.5 and 62.5 , i have chosen 47.5

for finding di we will subtract 'a' from xi one by one.

di = xi - a

so, di = 17.5 - 47.5 = -30

di = 32.5 - 47.5 = -15

similarly, we will find all like this.

(see the attachment.)

Step-by-step explanation:

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