Given:
Ten people:
5 people are 30 years old
3 people are 32 years old
1 person is 31 years old
1 person is 65 years old ⇒Outlier. No included in the next computation.
A.) Mean Age of the remaining 9 people.
Mean = (5(30) + 3(32) + 31) / 9
= (150 + 96 + 31)/9
= 277/9
= 30.77 or 30.80 is the mean age to the nearest tenth.
We need to get the variance before we can solve the standard deviation.
Variance:
1 ⇒ 30 - 30.80 = -0.80 ⇒ -0.80² = 0.64
2 ⇒ 30 - 30.80 = -0.80 ⇒ -0.80² = 0.64
3 ⇒ 30 - 30.80 = -0.80 ⇒ -0.80² = 0.64
4 ⇒ 30 - 30.80 = -0.80 ⇒ -0.80² = 0.64
5 ⇒ 30 - 30.80 = -0.80 ⇒ -0.80² = 0.64
6 ⇒ 31 - 30.80 = 0.20 ⇒ 0.20² = 0.04
7 ⇒ 32 - 30.80 = 1.20 ⇒ 1.20² = 1.44
8 ⇒ 32 - 30.80 = 1.20 ⇒ 1.20² = 1.44
9 ⇒ 32 - 30.80 = 1.20 ⇒ 1.20² =<u> 1.44</u>
sum: 7.56
divide by: <u> 9</u>
quotient: 0.84 Variance
Standard Deviation is the square root of the Variance.
Standard Deviation = √0.84 = 0.92
Answer:
total cost for Samantha to get her degree = $5,128.2
Step-by-step explanation:
Number of trimesters per year = 3
Number of years = 4
∴ Total number of trimesters throughout college = 3 × 4 = 12 trimesters
Tuition per trimester = $2.350
Total tuition (12 trimesters) = 2.350 × 12 = $28.2
cost of books per trimester = $425
cost of books throughout college (12 trimesters) = 425 × 12 = $5,100
total cost for Samantha to get her degree = total cost of tuition + total cost of books
total cost for Samantha to get her degree = 28.2 + 5,100
total cost for Samantha to get her degree = $5,128.2
There is 3937.01 inches in 100 meters.
There is 39.3701 inches in 1 meter
multiply that by 100 and you get your answer
Hope This Helps
Answer:
11
Step-by-step explanation:
Because
Add the one, and then the other
and boom
there's 11
(Ik this aint right, its just for comedy purposes)