Given x = 237;u=220 and s = 12.3 find z
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Z = (score-mean)/SD
Insert your values and calculate.
To find the value of z, we need to use the formula for z-score:
z = (x - u) / s
Where:
x is the given value,
u is the mean,
s is the standard deviation.
In this case, x = 237, u = 220, and s = 12.3.
Let's substitute these values into the formula:
z = (237 - 220) / 12.3
Now, we simply calculate the expression:
z = 17 / 12.3
Dividing the numerator by the denominator, we get:
z ≈ 1.382
Therefore, the value of z is approximately 1.382.