Answer:
The answer is below
Step-by-step explanation:
Given the time taken to answer each multiple choice question as one minute, the time taken to x multiple choice question = 1 minute/question × x questions = x minutes
Given the time taken to answer each essay question as six minute, the time taken to y essay question = 6 minute/question × y questions = 6y minutes
Therefore the total time taken to complete X multiple choice question and y essay questions = the time taken to x multiple choice question + the time taken to y essay question = x + 6y
Answer:
uhhhh maybe add a picture ?
Step-by-step explanation:
Answer:
Step-by-step explanation:
To factor a number means to break it up into numbers that can be multiplied together to get the original number:
Therefore, factors of 30 and 8
30: 2×3×5
8: 2×2×2
Then, the common factor is 2
Only 2 can be divided both 8 and 30.
If you need to know all the factor of 30 and 8
30: 1,2,3,5,6,15, and 30
8: 1,2,4 and 8
Answer 2/5. It says there are 5 people and 3 of them have done their hw and 2 have not cause 5-3=2.
Answer:
The 99% confidence interval would be given by (0.286;0.562)
Step-by-step explanation:
Information given:
represent the families owned at least one DVD player
represent the total number of families
represent the estimated proportion of families owned at least one DVD player
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 99% 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 99% confidence interval would be given by (0.286;0.562)
