aasho

can any one tell me about Site from where i can study TACTICS about Standarad Deviation in short time as i have test on 18th MAy

please can anyone provide me material from where i can learn about Standarad Deviation

Given A = {6, 6, 9,10,14,15} B = {7, 9,10,11,14, 15} Col A: Standard deviation of A Col B: Standard deviation in B Given a set of five numbers 27, 29, 35, 9, 25 & 16, on increasing each number by ‘K’ if the new mean of the set becomes 29.5, then what is the new median?

thanks

Answer is 8*7*6*5=1680

plzzz explain it in detail

great thanx alot

thanx alot

is it 420?

3/13 is int it?

FROM WHERE I CAN FIND THE Explaination and logic of solving such Questions

i found this approach really easier

thanks a lot

Thanks

great Explaination

please Accept me so that i can also join u tigress144

how it is 840

yes Answer is 27, but i dont know the logic for such questions

Three machines can finish a certain work in 36 hours at the same rate. If a 4th machine with the same rate is added in, what is the time to finish the work? how to solve these problems i have no idea

Ans: 4c2*(0.2) ^2*(0.8)^2 = 96 / 625. got it from this form but dont know how????????

plz post the URL

1) A committee of 5 is to be selected from a group of 15 girls the probability of Exclding girl=0 therefore A>B and Answer is A 2) In July the price of a stock increased by 10 percent. In August, it declined by 20 percent. If in September the price increased 10 percent, by what percentage of the original July price has the stock changed in price from the start of July to the end of September? (A) 0 percent (B) 3.2 percent © 4.4 percent (D) 20 percent (E) 40 percent Answer: initial value = 100. value in july = 110 value in aug = 88 value in sep = 96.8 % decrease=(100-96.8/100)*100=3.2 Answer is B ) Ans is D

i can join u, but how?????

how can i beome part of this group

please tell me how i can be the part of ur group