GRE quantitative Tutorial

Major Topics in GRE Quantitative Test

• ARITHMETIC
• ALGEBRA
• GEOMETRY
• DATA ANALYSIS

Quantitative TIPS

Format of GRE quantitative Section

Mathematical comparisons 14*
Problem Solving 10*
Chart 4*

Be Cool! Its very important for quantitative section. Prepare well on Mode ,Median, Probability, Permutations, Combinations. You may be getting around 4 questions on above topics.

We are listing some TIPS.

• 0 is not prime number.
• 1 is not prime number.
• 2 is prime number.
• probability =(Result you are looking)/(Total results).
• n!(n factorial)=n*(n-1)*(n-2)*...1
• Permutations is arrangement of things in definite order. While in Combination order doesn't matter.
• Median is the middle value in a set of numbers above and below it.
      Example 1 :Consider G={2,4,7,8,9,12,14}
      In this case 8 is median because there lies three other numbers before and after 8.
  
      Example 2 :Consider G={2,4,7,8,9,12}
      In this case median will be average of 7 and 8 i.e. 7.5
  
• Mode is the number or range of numbers in a set that occurs the most frequently.
      Example Consider G={1,2,4,8,17,2,4,5,6,7,8,2}
      In the above set 2 occurs thrice so this is mode.
• Range is defined as difference between maximum and minimum numbers in a set.
      For above set Range is 17-1 i.e. 16.
• Standard Deviation of a set is measure of the set's variation from its mean.
      Example Consider two sets G1={3,4,3,4} and G2={10,15,14,16}
      Then It can be seen G1 has lower S.D. as compared to G2.
  
  CD Provided by ETS has questions on Mode, median...Practice well!
  
  Good Luck!
  
  

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