5(x-2)=10
5x-10=10
5x=20
5x/5=20/5
x=4
Here you go! :)
Answer:
The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.
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 .
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For proportions, the mean is and the standard deviation is
In this problem, we have that:
.
So
The mean of the sampling distribution of the sample proportions is 0.82 and the standard deviation is 0.0256.
Answer:
The solution of the given set in interval form is .
Step-by-step explanation:
It is given in the question an inequality as .
It is required to determine the solution of the inequality.
To determine the solution of the inequality, solve the inequality and,
Step 1 of 2
Solve the inequality
Solve the inequality .
Step 2 of 2
The common solution from the above two solutions is x less than -4 and .
The solution set in terms of interval is .
X=0 solve by simplify both sides of the equation then isolating the variable sorry if wrong
Answer:
last year it was 150
Step-by-step explanation:
last year =100 ; increase= 30
total =130
130=195
100= 195/130=150