Help i dont know this one
1 answer:
You might be interested in
Answer:
The minimum sample size required is 5,499 computer users.
The major obstacle is that it is a big sample size if it is a small organization wanting to perform it.
Step-by-step explanation:
We need to calculate a sample size in order to have 95% confidence interval with 12 minutes of witdth.
So, we have that the difference between the upper limit and the lower limit is 12:
For a 95% CI, the value of z is 1.96. The standard deviation is 227.
The minimum sample size required is 5,499 computer users.
To solve this problem, we need to use combination which is statistical tool to determine the number of ways an event may occur. The combination to select a 5 a side team from 12 students is 792.
<h3>Combination</h3>This a mathematical technique that is used to determine the number of possible arrangements in a collection of items where the way they're arranged does not matter.
Data;
- Number of Students = 12
- Team = 5
The combination for this would be
The combination to select a 5 a side team from 12 students is 792.
Learn more on combination here;
#SPJ1
Answer:
The slope of the parallel line to the given line is
The equation of the parallel line to the given line and passes through the given point is y + 4 = (x + 2)
The y-intercept of the parallel line to the given line and passes through the given point is
Step-by-step explanation:
- The rule of the slope of the line that passes through points (x1, y1) and (x2, y2) is m =
- The point-slope form of the linear equation is y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line
- The slope-intercept form of the linear equation is y = m x + b, where m is the slope and b is the y-intercept
- Parallel lines have the same slopes and different y-intercepts
In the given figure
∵ The given line passes through points (2, 6) and (-6, 8)
∴ x1 = 2 and y1 = 6
∴ x2 = -6 and y2 = 8
→ Substitute them in the rule of the slope above to find it
∵ m = =
=
∴ The slope of the given line is
∵ Parallel lines have the same slopes
∴ The slope of the parallel line to the given line is
∵ The parallel line passes through the point (-2, -4)
∴ x1 = -2 and y1 = -4
∵ m =
→ Substitute them in the point-slope form above
∵ y - (-4) = (x - (-2))
∴ y + 4 = (x + 2)
∴ The equation of the parallel line to the given line and passes through
the given point is y + 4 = (x + 2)
∵ m =
→ Substitute it in the slope-intercept form above
∴ y = x + b
→ To find b substitute x by -2 and y by -4 (coordinates the given point)
∵ -4 = (-2) + b
∴ -4 = + b
→ Subtract from both sides
∴ = b
∵ b is the y-intercept
∴ The y-intercept of the parallel line to the given line and passes
through the given point is