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2nd Year Business Statistics Chapter 3 Test2nd Year · Business Statistics · Punjab (PTB)
Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)
The empirical relationship between mean, median and mode is, made=:
For an open and frequency distribution.It is not possible to calculate:
Mode is not affected by:
If
, which of the following is minimum:
Middle most value of the m observations arranged in ascending or descending order of magnitude is called:
The value which divides arranged data into two equal halves:
The sum of deviation is zero when deviation are takes from:
Which is a positional average:
Arrangement of data is necessary in finding:
Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)
The sum of deviation of 15 values from 20 is 45. Find Arithmetic mean.
The wages of six workers in rupees are 1800,1900,1700,2200,2000 and 1600. Find mean.
If mode=125, mean=80 is a skewed distribution calculate medians.
Calculate median from the data:9,5,6,3,10,14,7,11,14,18
Give mode for the data: 10,20,30,10,40,50,10,60
Find median of 0,-1,2,5,3,6,5
If mean is 15 and mode is 30, fine median.
Calculate the median of the data given -5,6,4,3,0,2.
Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)
Calculate A.M from the following distribution by coding method:
Groups 1.5-2.0 2.0-2.5 2.5-3.0 3.0-3.5 3.5-4.0 4.0-4.5 Frequency 3 7 10 15 9 6 Find the median from the following:
C.Limit 60-62 62-64 64-66 66-68 68-70 F 5 18 42 27 8 Calculate mode from the following data:
Hourly wages No. of employees 4-6 13 7-9 85 10-12 105 13-15 59 16-18 31 19-21 7