HOW TO FIND XI IN STATISTICS??
Answers
Answer:
xi represents the ith value of variable X. For the data, x1 = 21, x2 = 42, and so on. • The symbol Σ (“capital sigma”) denotes the summation function.
Step-by-step explanation:
Finding xi in a data :
xi is defined as the class mark !!
To find xi perform these steps :
Find the upper limit of the class
Find the lower limit of the class
Add the two limits
Then divide the sum by two
You will get the class mark
Examples :
Number of students Marks
10 - 20 97
20 - 30 96
30 - 40 95
40 - 50 94
Find the xi of class 30 - 40
xi = ( 30 + 40 ) / 2
= 70 / 2
= 35
Find the xi of class 10 - 20
xi = ( 10 + 20 ) / 2
= 30 / 2
= 15
Hope you understood :-)
Answer:
hey dear here is your answer
Step-by-step explanation:
Finding xi in a data :
xi is defined as the class mark !!
To find xi perform these steps :
Find the upper limit of the class
Find the lower limit of the class
Add the two limits
Then divide the sum by two
You will get the class mark
Examples :
Number of students Marks
10 - 20 97
20 - 30 96
30 - 40 95
40 - 50 94
Find the xi of class 30 - 40
xi = ( 30 + 40 ) / 2
= 70 / 2
= 35
Find the xi of class 10 - 20
xi = ( 10 + 20 ) / 2
= 30 / 2
= 15
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