Ubik's Cube is a 3 D combinations puzzle invented in 1974 by Hungarian sculptor and professors of architectures Ernő Rubyik. Originally called the Magic Cube,the puzzle was licensed by Rubik to be sold by Ideal Toy Corporation. in 1980 via businessman Tibor Laczi and Seven Towns founder Tom Kremer,and won the German game of the year special award for Best Puzzle that year. As of January 2009, 350 million cubes had been sold worldwide making it the world's top-selling puzzle game.It is widely considered to be the world's best-selling toy.
to play this game and to learn you need a lot of concentration and practice !
Complete question :
Two researchers, Jaime and Mariya, are each constructing confidence intervals for the proportion of a population who is left-handed. They find the point estimate is 0.13. Each independently constructed a confidence interval based on the point estimate, but Jaime’s interval has a lower bound of 0.097 and an upper bound of 0.163, while Mariya’s interval has a lower bound of 0.117 and an upper bound of 0.173. Which interval is wrong? Why?
Answer:
Mariya's interval
Step-by-step explanation:
Point estimate = 0.13
Mariya's confidence interval :
Lower boundary = 0.117
Upper boundary = 0.173
Jamie's confidence interval :
Lower boundary = 0.097
Upper boundary = 0.163
The correct confidence interval should have an average value equal to the value of the point estimate ;
Jamie's confidence interval average :
(0.097 + 0.163) / 2 = 0.26 / 2 = 0.13
Mariya's confidence interval average :
(0.117 + 0.173) / 2 = 0.29 / 2 = 0.145
Based on the confidence interval average obtained we can conclude that Mariya's interval is wrong as it the average obtained is greater than the point estimate.
0.145 > 0.13
Answer:im not sure but if im correct the answer should be 6
Step-by-step explanation:im assuming this cause if 8/4 is 2 then take the 2 and times it with the 3
X = The cost of each book of stamps
There for your expression would be:
3x + 4.50
3x is 3 book of stamps times x cost of each book.
Your 4.50 is your one time fee to mail the package.
Hope this helps! (:
Answer:

Step-by-step explanation:
We are given that

We have to find the implicit function
Using separation variable method

By using property 

By using property 
Taking integration on both sides

Parts integration method

By parts integration method

Using formula 



We are given that

