No products in the cart.

Find the mean literacy rate: Literacy …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Find the mean literacy rate: Literacy rate 45-55,55-65, 65-75, 75-85,85-95 Number of cities 3,10,11,8,3
  • 1 answers

Preeti Dabral 2 years ago

Marks No. of students 
fi​
xi​  fi​xi​ 
45-55 3 50 150
55-65 10 60 600
65-75 11 70 770
75-85 8 80 640
85-95 3 90 270
  Σfi​=35    Σfi​xi​=2430 

We know that, arithmetic mean {tex}=\frac{\Sigma \mathrm{f}_{\mathrm{i}} \mathrm{x}_{\mathrm{i}}}{\Sigma \mathrm{f}_{\mathrm{i}}}{/tex}

∴Mean literacy rate{tex}=\frac{2430}{35}=69.43 \%{/tex}

http://mycbseguide.com/examin8/

Related Questions

Venu Gopal has twice
  • 0 answers
(A + B )²
  • 1 answers
X-y=5
  • 1 answers
Water
  • 0 answers
sin60° cos 30°+ cos60° sin 30°
  • 2 answers

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App