hawk007

A certain characteristic in a large population has a distribution that is symmetric about the mean m. If 68 percent of the distribution lies within one standard deviation d of the mean, what percent of the distribution is less than m +d ? A. 16% B. 32% C. 48% D. 84% E. 92% OA

IMO C OA???? a series of reorganizations and consolidations ANd gives a plural

doesnt condition 2 x^3>y^4 imply that it is a fraction but we are not sure as even above condition satisifies that so we are not sure whether it is B and even C is not possible as 1) will imply that x is negative and 2) if it will imply that it is fraction still the value is not sufficient so the answer should be E

Agree with Vikram IMO B OA???

assumption high tables and stools would provide with more profits Conclusion :People who sit on high tables and stools are more intrested in Music and less intrested in food A can be eliminated B has a point C it is about profit not about musicians D can be eliminated as it is talking abt meals E no chance GUess ANs is B what is OA ???

Imo B

Imo E

Imo ` A

imo C

Imo A

imo C

imo E

Imo B

Imo E???

Imo 1)d

Imo D

thanks so much

agree with vikram IMO D

Imo A

Imo A?

IMO a

IMO b

Imo A

This question looks more like a data sufficiency What is this rowing speed in still water? a)8 mph upstream b)10 mph downstream Just a wild guess

Question asks for the units digit in 177^28-133^23 to solve this we have to take last digits in both as we need units place 7^28-3^23 will give the units place for the above mention question first solve 7^28 7^28 -- can be written as (7^4)^7 7^4---- 49^2 units digit for 49^2 is 1(9*9) when we calculate 7^4 we get units digit to be 1 as this value continues for seven times the 1^7---- gives 1 7^28 will yield an value of 1 in units place now 3^23 --- if we apply same logic as above 3^23 can be written as ((3^4)^5 *3^3) 3^4--- will yield an unit value as 1 and 3^3 will yield 7 so multiplying both we will get 7 for units digits for 3^23 therfore 177^28-133^23 can be written for units digits as 1(7^28)-7(3^23) since units digit so 11-7=4 Solution 4