anjali9788
13.12.2019 •
Mathematics
Six boys are comparing their heights. andy is taller than dan but shorter than ethan. bill is taller than ethan and frank. frank is taller than ethan. cory is shorter than dan. list the boys from tallest to shortest
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Ответ:
List of boys from tallest to shortest is: Bill, Frank, Ethan, Andy, Dan, Cory
Solution:Given that Six boys are comparing their heights
The six boys are Andy, Dan, Ethan, Bill, Frank, Cory
To find: List the boys from tallest to shortest
Andy is taller than Dan but shorter than Ethan
So the arrangement goes like this:
Ethan
Andy
Dan
Bill is taller than Ethan and Frank:
So Bill is taller than ethan. Thus the arrangement from tall to short is made as:
Bill
Ethan
Andy
Dan
Also bill is taller than frank. So frank can be placed anywhere below bill
But given that Frank is taller than Ethan. So frank can be placed above ethan
Now the arrangement goes like this:
Bill
Frank
Ethan
Andy
Dan
Cory is shorter than Dan.
So cory can be placed below Dan.
Thus final arrangement from tallest to shortest boys are:
Bill
Frank
Ethan
Andy
Dan
Cory
Ответ:
2.88
Step-by-step explanation:
Data provided in the question
= Population standard deviation = 7 miles per hour
Random sample = n = 32 vehicles
Sample mean = = 64 miles per hour
98% confidence level
Now based on the above information, the alpha is
= 1 - confidence level
= 1 - 0.98
= 0.02
For = 0.01
= 2.326
Now the margin of error is
= 2.88
hence, the margin of error is 2.88