Imagination is more important than knowledge... Albert Einstein

                                                                                   Guess is more important than calculation --- Knowhowacademy.com

 

Statistics - Mean, median, and mode

For GMAT
Number of Total Problems: 33.
FOR PRINT ::: (Book)

Problem Num : 21
Type: Understanding
Section:Statistics 
Theme:
Adjustment# : 8
Difficulty: 3

Category Mean, median, and mode
Analysis (2)T+S=240. so.. one of T or S should be less than 120

Solution/Answer

Answer: B



Problem Num : 22
Type:
Section:Statistics 
Theme:None
Adjustment# : 8
Difficulty: 1

Category Mean, median, and mode
Analysis

Solution/Answer

Answer: D



Problem Num : 23
Type:
Section:Statistics 
Theme:None
Adjustment# : 9
Difficulty: 1

Category Mean, median, and mode
Analysis focus on sum; 8*12(3/8)+4*15(1/4)

Solution/Answer

Answer: A



Problem Num : 24
Type:
Section:Statistics 
Theme:None
Adjustment# : 9
Difficulty: 1

Category Mean, median, and mode
Analysis express mathematically.

Solution/Answer

Answer: B



Problem Num : 25
Type: Understanding
Section:Statistics 
Theme:
Adjustment# : 10
Difficulty: 3

Category Mean, median, and mode
Analysis no info for # of members.. so we can use the variables. Let's combine together. m*25.7 +n*29.3=26.6(m+n) so that you can get m/n...

Solution/Answer to compare two values, we don't need to find indivisual values. m/n is enough

Answer: C



Problem Num : 26
Type:
Section:Statistics 
Theme:None
Adjustment# : 10
Difficulty: 1

Category Mean, median, and mode
Analysis Focus on sum

Solution/Answer

Answer: D



Problem Num : 27
Type:
Section:Statistics 
Theme:None
Adjustment# : 11
Difficulty: 1

Category Mean, median, and mode
Analysis

Solution/Answer

Answer: B



Problem Num : 28
Type:
Section:Statistics 
Theme:None
Adjustment# : 12
Difficulty: 1

Category Mean, median, and mode
Analysis Focus on Sum

Solution/Answer

Answer: A



Problem Num : 29
Type:
Section:Statistics 
Theme:None
Adjustment# : 12
Difficulty: 1

Category Mean, median, and mode
Analysis

Solution/Answer

Answer: B



Problem Num : 30
Type:
Section:Statistics 
Theme:None
Adjustment# : 15
Difficulty: 1

Category Mean, median, and mode
Analysis

Solution/Answer

Answer: B



Array ( [0] => 4950 [1] => 4983 [2] => 4632 [3] => 4993 [4] => 4982 [5] => 4754 [6] => 4717 [7] => 4962 [8] => 4711 [9] => 4819 ) 331  2  3  4