Answer: 30.5
Step-by-step explanation:
96+264 = 360
360 \ 24 = 15
Therefore he received 15 boxes
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
=
= 
95% of all values lie within the 2 standard deviation from mean
=
= 
99.7% of all values lie within the 3 standard deviation from mean
=
= 
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%
You should subtract left sides and right sides in order to make y disappeared
and you will have the following:
y - y = (x - 6) - (3x - 8) => 0 = x - 6 - 3x - 8 => 0 = -2x - 14 =>
2x = -14 => x = -14/2 = -7
Now you can use -7 in the system and you will get y
y = -7 - 6 = -13
So your answers will be:
x=-7 and y=-13
Mode is 6
Option A is correct.
Step-by-step explanation:
We need to find the mode for the given data set:
6,8,3,5,6,4,7,7,0,1,6
<u>Definition of Mode</u>
- Mode is the most repeating value of data set.
Finding mode of data set: 6,8,3,5,6,4,7,7,0,1,6
Arranging data in ascending order:
0,1,3,4,5,6,6,6,7,7,8
SO, most repeating value is 6
So, mode is 6
Option A is correct.
Keywords: Mode of data
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