To calculate the z-statistic, we must first calculate the
standard error.
Standard error is standard deviation divided by the square
root of the population. In this case, it is equal to 2.68.
The z-score is defined the distance from the sample to the
population mean in units of standard error.
z = (195 – 208)/2.68 = -4.86
Answer:
See explanation
Step-by-step explanation:
1. Given the expression
Note that
When dividing by we have to subtract powers (we cannot subtract 4 from 7, because then we get another expression), so
and the result is
2. Given equation
Add 4:
Divide by 3:
Rewrite the equation as:
Hence,
Answer:23/50
Step-by-step explanation:its 46/100 but it simplifies to 23/50 hope this helps god bless
Answer:
3.2
Step-by-step explanation: