120 km / 2km = 60
60*0.5 = 30 cm
Answer:
Expected Value of M is 50 and the Standard Error of M is 3
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean
and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation, also called standard error
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this problem, we have that:
µ = 50 and σ = 18
For the sample
Mean 50 and standard error
.
The answer is:
Expected Value of M is 50 and the Standard Error of M is 3
75%
Explanation: divide 6/8
Answer:
x = -3
Step-by-step explanation:
-3x + 1 = 10
=> subtract 1 from both sides
-3x = 9
=> divide both sides by -3
x = -3