Answer:
Standard deviation of a normal data distribution is a measure of data dispersion.
Step-by-step explanation:
Standard deviation is used to measure dispersion which is present around the mean data.
The value of standard deviation will never be negative.
The greater the spread, the greater the standard deviation.
Steps-
1. At first, the mean value should be discovered.
2.Then find out the square of it's distance to mean value.
3.Then total the values
4.Then divide the number of data point.
5.the square root have to be taken.
Formula-
SD=
Advantage-
It is used to measure dispersion when mean is used as measure of central tendency.
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#1. A- the square would have the greatest perimeter.
Avery gets paid 90 bucks per week
Step-by-step explanation:
The per month payment is obtained by dividing the whole amount by time.
Given
Avery gets paid 360 for 4 weeks
In order to find her payment for one week, we have to divide the total amount by 4 to get the payment for one week
So,

Avery gets paid 90 bucks per week
Keywords: Unit price, payment
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Answer: The axis of symmetry is x = 0
This is basically saying that the axis of symmetry is the vertical y axis
The vertex is either the highest point or the lowest point on the parabola, depending on what the value of 'a' is. If the vertex is the y intercept, then the vertex is on the y axis. The axis of symmetry goes through the vertex.