Well to find the mean you need to add up the total number of people and then divide by the total number of days meaning if there is a total of 105 people, you would divide that by 5 and get 21
13 + 23 + 24 + 31 + 14 = 105
105 / 5 = 21
Answer:
AC = 6
Step-by-step explanation:
given ∠A = ∠C then triangle is isosceles with BC = AB, hence
3x - 8 = x + 4 ( subtract x from both sides )
2x - 8 = 4 ( add 8 to both sides )
2x = 12 ( divide both sides by 2 )
x = 6
⇒ AC = x = 6
Answer: x = -10
Step-by-step explanation:
You just divide 8.5 by 5 to get 1.7 inches
Answer:
The standard deviation = 1.9
Step-by-step explanation:
standard deviation, ρ = sqrt (
)
Where u is the mean of the data,
each given value, and N is the number of data given.
Mean, u = 
= 5.2
So that;
=
= 0.64
=
= 0.04
=
= 10.24
=
= 0.04
=
= 7.84
Sum = 18.8
So that;
= 
= 1.9391
= 1.9
The standard deviation of the given data is 1.9