Answer:
(3.2189, 4.4811)
Step-by-step explanation:
Given that you conduct simple random sampling of 20 students in a school with a population of 300 students to determine how many students are in each ride-share (carpool) on the way to school every day to get a good idea of who would use the app.
The following data are collected:
6 5 5 5 3 2 3 6 2 2 5 4 3 3 4 2 5 3 4 5
We find from the data the following summary
Mean 3.85
Standard Error 0.30153118
Median 4
Mode 5
Standard Deviation 1.348488433
Sample Variance 1.818421053
Kurtosis -1.29567952
Skewness 0.014666866
Range 4
Minimum 2
Maximum 6
Sum 77
Count 20
Confidence Level(95.0%) 0.631112012
Margin of error = 0.6311
Hence confidence interval would be (Mean - margin of error, mean + margin of error)
= 
Answer:
Step-by-step explanation:
- The intercept of the function is the value of y when x=0. In this particular case, when x=0, y=0, then the intercept is y=0.
- The slope of the function must tell us what is the change in y when x changes. When x changes in one unit (from x=0 to x=1), y takes the value of y=-30, y=1x(-30). When x takes the value of x=2, y takes the value of y=-60, then y=2x(-30), and when x=3, y=3x(-30)=-90.
- This means that y always takes the value of -30x. Then the slope is -30, which is the rate of change of y as x changes.
Answer:
1.17
Step-by-step explanation:
(MUCH BETTER!)
From the definition of the sin of an angle, you know:
sin(45°) = AC/AB = 4/AB ⇒ AB = 4/sin(45°) ≈ 5.6569
sin(63°) = AC/AD = 4/AD ⇒ AD = 4/sin(63°) ≈ 4.4893
Then the difference AB-AD is:
AB -AD = 5.6569 -4.4893 = 1.1676
AB -AD ≈ 1.17 units
Sorry this took me so long to answer!
Answer:
the mean is 10
Step-by-step explanation:
if you add them all up (50) then divide it by how many months (5) you get 10
The answer is $2,250. (D). To get the answer you do 2,499-249= 2,250. Hope this helps!!
