Answer:
you would go to the left of zero 2 spaces to -2 then go 6 to the right of -2 to number 4 because -2 -(-6) = 4
Step-by-step explanation:
Answer:
The sample needed is 
Step-by-step explanation:
From the question we are told that
The margin of error is 
The confidence level is 
Given that the confidence level is 95% the level of significance is mathematically represented as
Next we obtain the critical value of 
from the z-table , the value is 
The reason we are obtaining critical value of instead of 
is because
represents the area under the normal curve where the confidence level interval (
) did not cover which include both the left and right tail while
is just the area of one tail which what we required to calculate the margin of error
The sample size is mathematically represented as
![n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \r p[1-\r p]](https://tex.z-dn.net/?f=n%20%20%3D%20%20%5B%5Cfrac%7BZ_%7B%5Cfrac%7B%5Calpha%20%7D%7B2%7D%20%7D%7D%7BE%7D%20%5D%5E2%20%2A%20%5Cr%20p%5B1-%5Cr%20p%5D)
Here 
is sample proportion of people that supported her and we will assume this to be 50% = 0.5
So
![n = [\frac{1.96}{ 0.08} ]^2 * [0.5 (1- 0.5)]](https://tex.z-dn.net/?f=n%20%20%3D%20%5B%5Cfrac%7B1.96%7D%7B%200.08%7D%20%5D%5E2%20%2A%20%20%5B0.5%20%281-%200.5%29%5D)
Answer:
x= 15
Step-by-step explanation:
23-8= 15
x=15
Answer:
1. Not Independent
2. Independent
3. Not Independent
4. Independent
Step-by-step explanation:
Independent: An event is independent if the outcome of one event doesn't effect the outcome of the other event.
Not independent : An event is Not independent if the outcome of one event effect the outcome of other event.
1. A jar contains twenty coins. Two coins are picked randomly without replacement.
Not Independent because if coins are not replaced the outcome of next event will be effected.
2. A coin is flipped three times.
Independent because when a coin is flipped once its outcome doesn't effect the outcome of the coin flipped again
3. A bag contains 5 red balls and 3 green balls. A red ball is chosen followed by a green ball without replacement.
Not Independent because if balls are not replaced the outcome of next event will be effected.
4. A spinner contains 3 equal sectors labeled A, B and C. The spinner is spun twice.
Independent because when the spinner is spuned once its outcome doesn't effect the outcome of the spinner spun again
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