Math, asked by PurpleLove, 4 months ago

Arithmetic mean of nine observations is calculated as 38. But in doing so, mistakenly
the observation 27 is taken instead of 72. Find the actual mean of the data.

NO SPAM !

paper answer please...

Answers

Answered by blinking

5

Step-by-step explanation:

Mean= 9/Sumofobservations

38×9=Sum

342=Sum

As 27 is mistaken for 72, the correct sum of 38 observations will be,

342−72+27=297

The actual mean will be,

Mean= 9/297

=33

Previous Question

Next Question

Similar questions

English, 2 months ago

what are the subject and predicate in the sentence which look nice...

English, 2 months ago

(c) Eight (vi) How many holes were present on the outy (a) Five (b) Seven natural...

Math, 2 months ago

The following determinants are obtained from the simultaneous equations in variables x and y. Dx = - 11 a 9 -4 Dy= 3 - 11 b 9 D= 3 2 7 -4 The solutions of the equation are x = - 1 and y = - 4. Find the values of a and b. Also find original simultaneous equation having this solution.

Math, 4 months ago

. Rina lost her weight in the ratio 5 : 3. Her original weight was 80 kg. What is her new weight?

Science, 4 months ago

if a substance was cold and dry, what element did the greeks think it was made of?

Environmental Sciences, 9 months ago

Animals A, B, & C all move without legs. i) A move by contraction and expansions of the muscles with a good grip from hair-like projections. ii) B lives in water swims by moving its tail from side to side. iii) C moves forward by moving its body sideways in the form of many loops. a) Identify animals A, B, and C. b) What is the shape of animal B called? c) How is the shape of B helpful...

World Languages, 9 months ago

how many types of galaxy are there?

Physics, 9 months ago

What are the steps to write IUPAC nomenclature?