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.
Answer:
Option C
Step-by-step explanation:
I took this before
Equation: 4 + 4x + x²
Maxima: No maximum value from said equation
Minima: x = -2 since that is the only critical point in the equation
Answer:
13 out of 16 (13/16)
Step-by-step explanation:
Add all of the items together.
5 stress balls + 3 notepads + 2 gift cards + 6 sticky notes = 16 items
So, now you have to find the probability out of 16.
Since there are 5 stress balls and 2 gift cards, there is a 5 out of 16 chance of passing out stress balls(5/16) and a 2 out 16 chance of handing out gift cards(2/16)
So, she has a 3 out 16 chance of handing out stress balls more than gift cards.
hope this helps and makes sense:)
The answer is -30 u multiply-3 3/4 by eight because -3 3/4 is one minute and the question is asking for eight minutes
