Answer:
50%
Step-by-step explanation:
68-95-99.7 rule
68% of all values lie within the 1 standard deviation from mean 
95% of all values lie within the 1 standard deviation from mean 
99.7% of all values lie within the 1 standard deviation from mean 
The distribution of the number of daily requests is bell-shaped and has a mean of 55 and a standard deviation of 4.

68% of all values lie within the 1 standard deviation from mean
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= 
95% of all values lie within the 2 standard deviation from mean
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= 
99.7% of all values lie within the 3 standard deviation from mean
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= 
Refer the attached figure
P(43<x<55)=2.5%+13.5%+34%=50%
Hence The approximate percentage of light bulb replacement requests numbering between 43 and 55 is 50%
Answer:
x = 101°
Step-by-step explanation:
15 + 25 + 39 + x = 180
79 + x = 180
x = 101
The statement is contradictory, because it is said that every member of the family gives a gift to every other member of the family. And from 10 members, there are just 2 exchanging. Anyway, maybe they are only 2 members exchanging the gifts at that point in time.
So, each member will exchange 9 gifts (that is 10 members total minus herself), and 2 members are exchanging gifts at that point, so 18 gifts are being exchanged.
9514 1404 393
Answer:
Africa
Step-by-step explanation:
In order, from lowest to highest, the low points are ...
Antarctica < Asia < Africa < <em>North America</em> < South America < Europe < Australia
The lower continent on your answer choices list is Africa.
Answer:
Vincent’s proportion is incorrect. His corresponding parts are not in the same position. The heights and bases are in different positions.
Step-by-step explanation:
I got it right on my assignment