Uh yeah the answer is 20 1/12 but could you tell me the step by step process for this
2 answers:
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Answer:
And we can find this probability with this difference:
And in order to find these probabilities we can using tables for the normal standard distribution, excel or a calculator.
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability with this difference:
And in order to find these probabilities we can using tables for the normal standard distribution, excel or a calculator.
The correct answer is: [B]: " 9.6 cm " .
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Explanation:
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Let "FH" = "x" ; for which we wish to solve.
45 cm / 12 cm = 36 cm / "x" (in "cm") ;
To solve for "x" ;
Cross--multiply:
Note: Given:
"
" ; " ad = bc " ; (b ≠ 0 ; d ≠ 0) ;
So: " 45x = 12 * 36 " ;
→ 45x = 432 ;
Divide each side of the equation by "45" ;
to isolate "x" on one side of the equation; & to solve for "x" ;
→ 45x / 45 = 432 / 45 ;
→ x = 9.6 cm ;
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→ which corresponds with:
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→ Answer choice: [B]: " 9.6 cm " .
___________________________________________________________
Hope this answer — and explanation — helps!
Best wishes in your academic pursuits!
___________________________________________________________
____________________________________________________________
Explanation:
____________________________________________________________
Let "FH" = "x" ; for which we wish to solve.
45 cm / 12 cm = 36 cm / "x" (in "cm") ;
To solve for "x" ;
Cross--multiply:
Note: Given:
"
So: " 45x = 12 * 36 " ;
→ 45x = 432 ;
Divide each side of the equation by "45" ;
to isolate "x" on one side of the equation; & to solve for "x" ;
→ 45x / 45 = 432 / 45 ;
→ x = 9.6 cm ;
___________________________________________________________
→ which corresponds with:
___________________________________________________________
→ Answer choice: [B]: " 9.6 cm " .
___________________________________________________________
Hope this answer — and explanation — helps!
Best wishes in your academic pursuits!
___________________________________________________________