Answer:
14
Step-by-step explanation:
From the given information:
suppose, Y is the number of times a coin is being flipped.
If the coin is flipped for the first time and we get H, then we have:
TTT = 
Afterward, if we get H, then we waste two times plus the probability of this event 
.
Therefore, we have : 
Afterward, if we get H, then we waste three times plus the probability of this event 
.
Therefore, we have : 
If we got T at the third time, then;
T = 
Thus, average number of headsthat you’ll see until gettingTTT can be expressed as:
= 14
Answer:
The answer is 30 months
Step-by-step explanation:
900 divided by 12 months = 75/month
2250 divided by 75 each month = 30 months
English translation:
If the quality control manager wants to estimate the average life of lamps with 20 hours, with a confidence level of 95% and an error of 10% is assumed. What is the sample size?
Answer:
the answer for this is:
subtract 7 from 4 to get -3
you then have 2^-3
remove the negative exponent by rewriting as 1/(2^3)
Step-by-step explanation:
Company A-> charges $75 and unlimited millage.
Company B-> initial fee $55 and charges +$0.8 for every mile driven.
The inequality that represents for what millage will company A charges less than company B is:
Let m be the number of miles
[tex]\begin{gathered} 75<55+0.8m \\ 75-55<0.8m \\ 20<0.8m \\ \frac{20}{0.8}For 25 miles company A will charge less than company B.
