Answer:
Correct option: D
Step-by-step explanation:
The distribution of sample means (), computed from various samples drawn from the same population, is known as the sampling distribution of sample means.
According to the Central Limit Theorem, if we have a population with mean <em>μ</em> and standard deviation <em>σ</em> and a huge random-samples (<em>n</em> ≥ 30) from the population is selected with replacement, then the distribution of the sample means will be approximately Normally distributed.
Then, the mean of the sample means is given by,
And the standard deviation of the sample means (also known as the standard error)is given by,
The probability curve for the sampling distribution of sample mean is symmetric and bell-shaped.
Thus, the statement that is not a property of the sampling distribution of the sample mean is (D).
Answer:
5
Step-by-step explanation:
7c³d²
This term has tow variables, c and d
Power of c is 3
Power of d is 2
Degree of this monomial is = 3+2 = 5
10(the number of tests) divided by 5(the amount of weeks)=2. That is 2 tests every week. 2x7 weeks is 14 tests.
Or this could be a trick question and he could have only had tests for 5 weeks.
Answer:
domain: (-infin., infin.)
range: (-infin., infin.)
Step-by-step explanation:
This is an odd degree polynomial which forms a sideways S shape starting low and ending high. Since nothing restricts the function from having an output for every real number input, the domain and range are (-infin., infin.).
<h2>
Hello!</h2>
The answer is:
The fourth option,
<h2>Why?</h2>
To solve the problem, we must remember the following property of the functions:
Subtraction of functions:
We have that,
We are given the functions:
and
So, calculating we have:
Hence, the answer is the fourth option,
Have a nice day!