Economy, asked by Prashantkumar2413, 6 months ago

Calculate average marks of students by short-cut method.
Marks 10 20 30 40 50
No. of students 15 10 40 20 15

Answers

Answered by lram5731
1

Answer:

The following table shows the marks scored by 140 students in an examination of a certain paper:

Marks:0-1010-2020-3030-4040-50Number of students:2024403620Calculate the average marks by using all the three methods: direct method, assumed mean deviation and shortcut method.

Previous Question
Next Question
Similar questions
Science, 3 months ago
draw the tongue and label it ​...
Math, 3 months ago
What is your national fruit in India​...
Math, 3 months ago
A shopkeeper buys 50 kg of sugar for 15 per kg.How much sugar should he buy at the rate of 25 per kg,so that he spends the same amount?​
Biology, 6 months ago
Two statements are given- one labeled Assertion (A) and the other labeled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below: a) Both A and R are true, and R is correct explanation of the assertion. b) Both A and R are true, but R is not the correct explanation of the assertion. c) A is true, but R is false. d) A is false, but R is...
Computer Science, 6 months ago
Write a note about evolution of operating system...
English, 11 months ago
Character Sketch Of Mother Teresa...
English, 11 months ago
Character Sketch Of Anne Frank In 150 Words...
Science, 11 months ago
Two resistors, with resistances 10 Ω and 15 Ω, are to be connected to a battery of emf 12 V so as to obtain: (i) minimum current (ii) maximum current (a) Describe the mode of connecting the resistances in each case. (b) Calculate the strength of the total current in the circuit in each case.