The weights are within 2 standard deviations of the mean are 8.9 lbs, 9.5 lbs and 10.4 lbs
<h3>How to determine the weights?</h3>
The given parameters are:
- Mean, μ = 9.5
- Standard deviation, σ = 0.5
The weights within 2 standard deviation is represented as:
μ - 2σ ≤ x ≤ μ + 2σ
Substitute known values
9.5 - 2(0.5) ≤ x ≤ 9.5 + 2(0.5)
Evaluate the product
9.5 - 1 ≤ x ≤ 9.5 + 1
Evaluate the sum
8.5 ≤ x ≤ 10.5
This means that the weights are between 8.5 and 10.5 (inclusive)
Hence, the weights are within 2 standard deviations of the mean are 8.9 lbs, 9.5 lbs and 10.4 lbs
Read more about standard deviation at:
brainly.com/question/11743583
Answer:
(0,9), (1,7), and (2,5)
Step-by-step explanation:
i found three tell me if theyre wrong
the picture in the attached figure
we know that
in the right triangle FON
sin F=opposite side angle F/hypotenuse
in this problem
opposite side angle F=ON--------> 9 units
Hypotenuse=FN--------> 18 units
so
sin F=ON /FN-------> sin F=9 /18
therefore
the answer is the option
B.) sin F 9/18
Direct substitution: replace all the x with 2:
f(2)=3*
-2*2³+2²-3*2+4=34
Rate * time = distance traveled
55 * 4 = 220 miles