All you wanna do is get 'y' by itself so you divide 80 by -5 and you get -16 as the answer
Answer:
Test statistic z= 1.708
Step-by-step explanation:
given that a television network is deciding whether or not to give its newest television show a spot during prime viewing time at night. If this is to happen, it will have to move one of its most viewed shows to another slot.
Sample size n = 827
Sample proportion p = 
(right tailed test)
This is because they would be interested if more than half viewers are ready for the change
Test statistic = Z = p difference/std error
p difference = 0.0297
Std error =
Z =1.708
p valu e= 0.9562
Since p >0.05 we fail to reject H0
Test statistic z= 1.708
The answer to this problem is 3 is less than or equal to 17
You solve the problem by subtracting 2 from 5 because you have to solve for X. 5 minus 2 is 3, so you would get 3 if you had the problem.
Hope this helps!
-Dub-
You have to calculate the expected value of pulling any number of good batteries.
There are 3 bad batteries (B) and seven good batteries (G)
If you pull two batteries the possible number of good batteries you can get are 0, 1 and 2.
GB, BG, GG, and BB
two chances for getting 1, one chance for getting two, and one chance for getting zero.
In order to calculate the expected value you have to first calculate the values of all the possibilities.
(GB = 7/10 x 3/10) (BG = 3/10 x 7/10) (GG = 7/10 x 7/10) (BB = 3/10 x 3/10)
Then take these answers and multiply them by the number of good batteries they each contain and add. (GB is 1 good battery, GG is two, etc.)
1(.21) + 1(.21) + 2(.49) + 0(.09)
The result is 1.4
The expected value of good batteries is 1.4
Answer:
X must be a number more than 3
X could be 5
Step-by-step explanation:
If x was 5, -3+5 would equal 2. This is a positive number.
If we said that X was a negative number such as -4, it would not work because -3-4=-7. That means that X equals -7. This is not a valid answer as it is a negative number.
This was just a guess, please check.
