Answer:
A normal distribution or z-test is used to construct a confidence interval.
Step-by-step explanation:
We are given the following in the question:
Sample mean,
= $3120
Sample size, n = 40
Population standard deviation, σ = $677
The distribution of earnings of college is a normal distribution.
Conditions:
- Since we are given the population standard deviation and the the sample size is also greater than 30.
Conclusion:
Thus, we use a normal distribution or z-test to construct a confidence interval.
Y=(1)/(3)x-9 that’s the answer
Answer:
<h2>thank you me and brainiest me</h2>
Step-by-step explanation:
Polynomial equation Solving for 8x + 24 = 0
standard form:8(x + 3) =0
Factorization:
8(x + 3) = 0
solutions
x = −24
8
= −3
5/10 bc it is equal to 1/2 which is bigger than 2/5 or 4/10 1/3
Answer:
A constant is a number that stays the same. A variable is number that doesn't remain the same.