I believe the problem ask for s which is the standard
deviation. We must recall that the formula for z statistic is stated as:
z = (x – x over bar) / s
Where,
z = z statistic = 2.5
x = sample value or sample score = 102
x over bar = the sample mean or sample average = 100
s = standard deviation = unknown
Rewriting the equation in terms of s:
s = (x – x over bar) / z
Substituting the given values into the equation:
s = (102 – 100) / 2.5
s = 0.8
Therefore the standard deviation s is 0.8
Answer: 3
Step-by-step explanation: just a regalar algebra equation but with a less than or equal sign
Answer:
decreasing
Step-by-step explanation:
The usual English definition of "descending" applies. When terms are written in descending order of degree, the exponents (degree) are <em>decreasing</em>.
Probability = amount of blue/ amount of all
Probability = 4/12
Probability = 1/3
