Answer:
Mean = 212.93
Median = 231
Mode = 231
Mid range = 192.5
(B) Yes, the time of 0 hours is very unusual. It could represent a flight that was aborted.
Step-by-step explanation:
We are given the following data set:
8, 92, 231, 189, 169, 267, 196, 381, 257, 231, 385, 330, 219, 239, 0
Formula:
a)
b)
Sorted data:
0, 8, 92, 169, 189, 196, 219, 231, 231, 239, 257, 267, 330, 381, 385
Mode is the most frequent observation in the data.
Mode = 231
It repeated 2 times.
0 is an outlier to the given dataset. Thus,
Option (B) Yes, the time of 0 hours is very unusual. It could represent a flight that was aborted.
To solve this problem you must apply the proccedure shown below:
1. You have that Jim drove the car 2,718.3 miles for a total mileage of 87,416.
2. Then, to calculate the mileage before last month, you only need to substract the total mileage given in the exercise above and the mileage drove last month, as following:
Therefore, the answer is: 84,697.7 miles.
The rest of the question is the attached figure
========================================
solution:
========
As show in the attached figure
∠M = ∠R = 54.4°
∠N = ∠T = 71.2°
∠O = 180° - (∠M + ∠N) = 180° - (54.4°+71.2°) = 54.4°
∠S = 180° - (∠R + ∠T) = 180° - (54.4°+71.2°) = 54.4°
∠O = ∠S = 36°
∴ Δ MNO is similar to Δ RTS
So, the correct statement:
The triangles each have two given angle measures and one unknown angle measure.
Answer:
A. $1,710
B. Yes, probably.
Step-by-step explanation:
Assuming that a 10% decrease in energy use leads to a 10% decrease in the electric bill:
We'll want to find the value which is 10% less than the original value, i.e., the bill cost which is 90% of the original bill.
90% = 0.9
Since the original bill was $1900, we can just multiply 1900 by 0.9:
Answer: A bill of $1,710 would equal a 10% decrease.
Since $1,672 is less than that, then they have decreased their energy use by more than 10% which is likely a success.
Answer: Yes, probably.