Answer:
5 1/3 = 15/3 + 1/3 = 16/3 cups of water
Divide it by 2/3 cup
Number of color = ( 16/3) / (2/3) = 8 paint colors
You can make 8 different paint colors
Step-by-step explanation:
Answer:
-4.5 =y
Step-by-step explanation:
2y – 3 = 4y + 6
Subtract 2y from each side
2y-2y -3 = 4y-2y +6
-3 = 2y +6
Subtract 6 from each side
-3 -6 = 2y +6-6
-9 = 2y
divide each side by 2
-9/2 = 2y/2
-4.5 =y
Mean: To find the mean, we need to add up all of our numbers and divide by the amount added. Adding 22, 20, 14, 22, 29, 20 gives us 127. Then, we divide by 6. This gives us 21.166… or 21.13 rounded.
Mode: The mode is the number that appears the most often. Our numbers are 22, 20, 14, 22, 29, and 20. 22 appears 2 times, 20 appears 2 times, 14 appears 1 time, and 28 appears 1 time. Therefore, the mode is 22 and 20.
Medium/median: I am assuming you meant median, the median is the middle number when the list is sorted from least to greatest. This means our list is 14, 20, 20, 22, 22, 29. We can find the median by crossing out the outer numbers and so on until we reach the middle. 14 and 29 are crossed out. 20 and 22 are crossed out. This gives us 22 as the median.
Range: The range is the difference between the greatest and the least number in our list. The greatest number in our list is 29. The number of the least value is 14. 29-14 is 15. 15 is our range.
Answer:
a) We need a sample size of at least 705.
b) We need a sample size of at least 1692.
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 zscore that has a pvalue of
.
The margin of error is:

90% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
a) If she uses 1999 estimate of 11.8% obtained from the Current Population Survey.
We need a sample of size at least n
n is found when
.
So






Rounding up
We need a sample size of at least 705.
b) She does not use any estimate.
Same thing as above, we just use
when do not use any estimate.






Rounding up
We need a sample size of at least 1692.