Answer:
208cats
Step-by-step explanation:
⅝=tongue
³/16=straw=39cats
⅝+³/16=13/16
meaning total number of cats is 16/16
If ³/16=39cats
16/16=?
39×16/3
=208cats
Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.
Step-by-step explanation:
Since we have given that
Sample size = 400
Mean = $357.75
Standard deviation = $37.89
At 95% confidence level, z = 1.96
We first find the margin of error.
Margin of error is given by
![z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1.96\times \dfrac{37.89}{\sqrt{400}}\\\\=3.71](https://tex.z-dn.net/?f=z%5Ctimes%20%5Cdfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%5C%5C%5C%5C%3D1.96%5Ctimes%20%5Cdfrac%7B37.89%7D%7B%5Csqrt%7B400%7D%7D%5C%5C%5C%5C%3D3.71)
95% confidence interval would be
![\bar{x}\pm \text{margin of error}\\\\=357.75\pm 3.71\\\\=(357.75-3.71,357.75+3.71)\\\\=(354.04,361.46)](https://tex.z-dn.net/?f=%5Cbar%7Bx%7D%5Cpm%20%5Ctext%7Bmargin%20of%20error%7D%5C%5C%5C%5C%3D357.75%5Cpm%203.71%5C%5C%5C%5C%3D%28357.75-3.71%2C357.75%2B3.71%29%5C%5C%5C%5C%3D%28354.04%2C361.46%29)
Hence, the margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.
Answer:
b^7/5
Step-by-step explanation:
The 5 is in front of the radical ,so it would go on the denominator.
3 Which of the following represents a function? A {(-2, 1), (-2, 0), (-2, 1), (-2, 2)} B {(-1,0), (0, 1), (1, 2), (2, 3)} C {(1,
solong [7]
Answer:
A
Step-by-step explanation:
because they want you to look for the number who repeat in the right like A (
Answer:
See the picture attached
Step-by-step explanation:
- The function means that the variable "y" (dependent variable) depends on x(inependent variable), in the following way:
. - When
,
, when
, then
. - The intercept of the function (the value that makes y=0) will be for x=1, and the slope (which is the coefficient that join x, is (-1). Using this information, you can obtain the graph for this function.