Answer:
The 98% confidence interval for the probability of flipping a head with this coin is (0.4756, 0.7044).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the z-score that has a p-value of
.
An experimenter flips a coin 100 times and gets 59 heads.
This means that 
98% confidence level
So
, z is the value of Z that has a p-value of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 98% confidence interval for the probability of flipping a head with this coin is (0.4756, 0.7044).
Answer:
It's C
Step-by-step explanation:
Because if you look at the other numbers they all add up to the next number by 4. 4+4=<em>8 </em>8+4=<em>12 </em>12+4=<em>16</em> 16+4=<em>20</em> 20+4=<em>24 </em>
<em>Therefore, x intercept </em>is 24 and <em>y</em> intercept is 18. Hope this is correct if it's not correct then I'm very sorry. Have a nice day. ;)
Answer:
1. $3.65
2. 4th graph
3. y = 1/2x
Step-by-step explanation:
1.
10.95 ÷ 3 = 3.65
2.
The fourth option (one on the bottom) makes the most sense.
3.
Rise/Run
y = 1/2x
Answer:
<u>Line b</u>
Step-by-step explanation:
It cannot be line a or line d because the line will have a constant rate of change. It cannot be line c because line c would be undifined. Therefore, it must be line b.
Answer: $128
Step-by-step explanation: So first Bob earned 8 dollars. Then he started earning 10 dollars a day every week for 2 weeks. that would have been 148 dollars (plus the 8 dollars he earned in the beginning), but he took a break once a week, subtracting 20 dollars from his pay, giving him 128 dollars in total.
Let me know if this was helpful! :D