Question

if Q1=34, and Q3=47 find quartile deviation
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Answer 1

Step-by-step explanation:

Qi= [i * (n + 1) /4] th observation

Q1= [1 * (10 + 1) /4] th observation

Q1 = [1 * (10 + 1) /4] th observation

Q1 = 2.75th observation

So, 2..75th observation lies between the 2nd and 3rd value in the ordered group, or midways between 12 & 14 therefore

First Quartile (Q1) is calculated as

Answer 2

Answer:

Quartile Deviation formula: (Q3-Q1)/2

Step-by-step explanation:

QD= (Q3-Q1)/2 =(47-34)/2=13/2=6.5