Answer: Question #1 is Unit Fraction. Question #2 is Fraction. And Question #3 is Equal To.
Step-by-step explanation: Hope this helps! Have a fantastic day!
2.5 plus 13.5 times 10
Hope that helps
Answer:
ok so you see that right away bike shop x is more cost than bike shop z so if you add 2.75 and 3 dollars it would cost 5.75 dollars of course the cost of 2.75 dollars is per hour so you would need to count 2.75 per hour and as you bike shop z the amount of cost per hour is 1.75 but the deposit fee is 7 dollars so the cost would be 8.75.
Step-by-step explanation:
Ok why it is lower cost because as you see each hour on shop x it is 2.75 and each hour in z shop it is 1.75 why z shop is lower because x shop have bigger cost per hour and that can add up more than z shop.
Answer:
x = 5
Step-by-step explanation:
60 + 42.95x = 25 + 49.95x
60 + 42.95(5) = 25 + 49.95(5)
42.95 * 5 = 214.75
214.75 + 60 = 274.75
49.95 * 5 = 249.75
249.75 + 25 = 274.75
Hope this helped!:))
Answer:
The 90% confidence interval would be given by (0.026;0.073)
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
Solution to the problem
The estimated proportion for this case is:

Represent the proportion of defectives for this case
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by
and
. And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
If we replace the values obtained we got:
The 90% confidence interval would be given by (0.026;0.073)