It can be found by using the formula,
an = a+(n-1)d
Divide 4 on each side and X will be = to 5
4x/4 = 20/4
X = 5
Answer: C. x = 50
Step-by-step explanation: 2/5 x 50 = 100/5 = 20 and 20+10=30.
Z = 1.00, z-score is associated with this value.
Why is z-score important?
- Because they allow for a comparison between two scores that do not belong to the same normal distribution, z-scores are significant.
- They are also employed to determine the likelihood that a z-score will occur inside a normal distribution. A negative z-score indicates that the raw data is smaller than the mean.
What Is a Z-Score?
- A Z-score is a metric that quantifies how closely a value relates to the mean of a set of values. Standard deviations from the mean are used to measure Z-score.
- A Z-score of zero means the data point's score is the same as the mean score.
one std dev to the right
so, Z = 1.00
Learn more about Z-Score
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The complete question is?
Converting to z-Scores Conceptual Overview: Explore how an original or "raw" score can be expressed as a 7-score using the mean and standard deviation of the variable. The dot plot below shows the sizes for five classes with a mean of 44 and standard deviation of 8. The dynamic equation shows the mathematical conversion to z-scores in real-time. Drag the vertical line to see the corresponding 2-score for each possible class size. 2 42-44 = 8 -0.25 s x = 42 32 54 mean x = 44 z = -0.25 -1.50 0.25 1.24 mean z=0 Created by Gary H. McClelland, Professor Emeritus University of Colorado Boulder Cengage Learning. All Rights Reserved 1. Make sure the green line is on the mean value of x = 44. Next, move the green line one standard deviation to the right. What z-score is associated with this value?
