The answer would be A. 449.1 cm2.
Answer:
The larger the number of items in the sample, the more closely the distribution of sample items will follow a bell-shaped curve
Step-by-step explanation:
The question is about the distribution of the sample
The sampling distribution, also called the distribution of the sample mean is the distribution for many samples drawn form population at random for large sizes.
As per central limit theorem, if samples of sufficiently large size to represent the population is drawn from the population, the sample means of all sample will follow a normal distribution and hence bell shaped.
So from the options we say a is incorrect because not always
b is incorrect because there is no mention about the chance.
c is incorrect because when we use sample variance we use t test
Option d is correct.
The larger the number of items in the sample, the more closely the distribution of sample items will follow a bell-shaped curve
Potato kdhsgsvsvgsygsbsbsbsbsbbsbsbebdbdbbdbdbdbdbdbdbdbfgdgdggdgdvdvdbdbdbdbdbdbdbdbdbdfhhhhhxh
Answer:
15-5y
Step-by-step explanation:
To distribute, multiply everything inside the parentheses by the number outside the parentheses.
5(3-y)
Multiply 5 by 3-y
(5*3)+(5*-y)
15-5y
Answer:
52
Step-by-step explanation:
Given the the equation h(t) =-
where t is the time in second
So to find the ball's maximum height we can apply the vertex formula:
t= 
to find the "x" value of the vertex, then plug that value into the original equation as a substitute for "x".
Standard quadratic form is: 
=> a=15, b=30 in our given equation
<=> t = 
When t =-1 we have h(t) = 
= 52
So the ball's maximum height is: 52
Hope it will find you well.
