Step-by-step explanation:
a) There's a mistake at the third step from the beginning.
b) Instead of adding 25 , Josh added 100. While solving an equation using "Completing Squares Method" , we need to write the L.H.S. in the form of or , so that in the next step it can be converted into or .
c)
Taking -88 to R.H.S. , it's sign changes and becomes +88.
Using "Completing Squares Method" , L.H.S. can be written as :-
Answer:
32.5
Step-by-step explanation:
isnt are width times height
Answer:
1.08×10^11
Step-by-step explanation:
1.08 times 10 to the power of 11
Ithe answer is c bec if there is 3 nuts you have 1 out of 3 chance to pull out a almond or cashew.
Answer:
a) (0.124, 0.435)
b) I am 95% confident that the proportion difference is between 0.124 and 0.435
Step-by-step explanation:
Given that:
For male students: number of male students () = 69, number who liked the new method (x) = 38
For female students: number of female students () = 73, number who liked the new method (x) = 20
a) The probability that a male student like the new method () is given as:
The probability that a female student like the new method () is given as:
c = 95%, α = 1 -c = 0.05
the difference between the proportions of male and female students who like the new method better = ± = ± = (0.124, 0.435)
b) I am 95% confident that the proportion difference is between 0.124 and 0.435