Question

Coefficient of quartile deviation for a series of observation is 0.425 and third deviation is 57. The first quartile is

Answer 1

Answer:

the answer is 27...

Step-by-step explanation:

. So we have Q3 = 57 ,Q1 = ? and

coefficient of quartile deviation = 0.425

coefficient of quartile deviation = Q3 - Q1 /

Q3+Q1

. 0.425 = 57 - Q1/57+Q1

0.425(57+

.

Q1)=57-Q1

24.225+

.

0.425Q1+Q1=57

1.425Q1

32.775/1.425

( or). Q1=

23

.

So the first quartile is 23