Math, asked by antonyanuj380, 1 year ago

The average height of 40 students is 150cm. it was later detected that one observation 165 cm was wrongly copied as 125 cm for computation of mean. find the correct mean height

Answers

Answered by Ritu091
1
avg ht=total ht/no. if students
150=total ht/40
total ht=6000
correct total ht=6000-125+165=6040
mean=total ht/no. of students=6040/40=151

Previous Question
Next Question
Similar questions
Math, 8 months ago
The angle opposite to the base of an isosceles triangle is called its ______ angle. * (a) Vertical (b) Adjacent (c) Reflex (d) none of these ​...
English, 8 months ago
Unit-IV 4. (a) Read the following passage carefully and answer the questions given below: 5 Perhaps the most wonderful of all the inventions of science is "Wireless telegraphy". This is so wonderful to recall the realm of fairy land and the marvels of the 'Arabian Nights'. Today a vessel many hundreds of miles from land can operate to almost any seaport it passes and it may 321 P.T.O. send...
Computer Science, 8 months ago
school Attendance system is a ________________ software. a) System b) Application c) Booting d) Utility...
Social Sciences, 1 year ago
Explain the following terms- general election,By -election,Reserved constituencies,electoral Roll,Model code of conduct,Electoral voting Machine and Turn out. .
Math, 1 year ago
The ages of four brothers of a family are in ap the eldest brother age is 17th years and age difference between eldest brother and youngest brother is 9 years find the ages...
Hindi, 1 year ago
"Question 1 निम्नलिखित प्रश्न के उत्तर (50-60 शब्दों में) लिखिए− गाँधीजी में नेतृत्व की अद्भुत क्षमता थी; उदाहरण सहित इस बात की पुष्टि कीजिए? Class 10 - Hindi - पतझर में टूटी पत्तियाँ Page 122"...
Hindi, 1 year ago
"Question 4 निम्नलिखित प्रश्न के उत्तर (25-30 शब्दों में) लिखिए− चाय पीने के बाद लेखक ने स्वयं में क्या परिवर्तन महसूस किया? Class 10 - Hindi - पतझर में टूटी पत्तियाँ Page 122"...
Hindi, 1 year ago
"Question 3 निम्नलिखित प्रश्न के उत्तर (25-30 शब्दों में) लिखिए− 'टी-सेरेमनी' में कितने आदमियों को प्रवेश दिया जाता था और क्यों? Class 10 - Hindi - पतझर में टूटी पत्तियाँ Page 122"...