- The mean of the number of hours worked by these students is 14 hours.
- The median is 12.5 hours.
The mean is the sum of all the hours listed divided by the number of seniors asked:
= ( 0 + 0 + 0 + 8 + 8 + 10 + 12 + 13 + 15 + 15 + 17 + 20 + 22 + 56) / 14
= 196 / 14
= 14 hours
The mean number of hours is 14 hours.
The median
Because the number of student interviewed is an even number, the median is calculated by taking the average of the two numbers in the middle.
<em>The numbers are ⇒ 12, 13</em>
Median is therefore :
= ( 12 + 13) /2
= 12.5 hours
In conclusion, the mean is 14 hours and the median is 12.5 hours.
<em>Find out more at brainly.com/question/11284383</em>
This question is way to hard
Answer:
b and c
Step-by-step explanation: If you subtract 23 from 23/ 23-23=0 and 23-(-23)= 0. Hope this helps!
Answer:
m∠Z = 166°
Step-by-step explanation:
Since we know that the angles add up to 720°, we can set up an equation to solve for the variable x:
12x + 14x - 6 + 108 + 108 + 108 + 90 = 720
26x + 408 = 720
26x = 312
x = 12
Now we substitute the number in for x to solve ∠Z:
m∠Z = 14(12) - 2 = 166
m∠Z = 166°
