Answer: 9
Step-by-step explanation: The thousandths place is always three spots away from the right side of the decimal place. Whenever the question asks for the thousandTHs place then it is a decimal the question is looking for. If it ask for the thousands place (with no th) then the question is looking for an actual number, not a decimal. Hope this helped!
By formula we know that:
z (x) = (x - m) / [sd / sqrt (n)]
where x is the value we want to know (6.7), m is the mean (5), sd is the standard deviation (7.1) and n is the sample size (29).
Replacing we have:
z (6.7) = (6.7 - 5) / [7.1 / sqrt (29)]
z = 1.289
If we look in the normal distribution table (attached), we have that the probability is 0.8997, therefore:
1 - 0.8897 = 0.1003
So the conditional probability of a herd sample earning at least 6.7 pounds per steer is 10.03%.
Now the hypothesis tells me:
m> 5
The probability is somewhat low, therefore, the most correct thing is to reject the hypothesis even though it is a fact that can occur.
Answer:
B and C
Step-by-step explanation:
did type just 4.9 but mb
Answer:
20 movies ; $70
Step-by-step explanation:
Company 1:
Monthly charge = $40 ; additional = 1.5 per movie
Let number of movies = x ; t = cost
Equation 1:
y = 40 + 1.5x
Company 2:
Monthly charge = $30
Additional = $2 per movie
Equation 2:
y = 30 + 2x
1) for equation 1 = equation 2
40 + 1.5x = 30 + 2x
40 - 30 = 2x - 1.5x
10 = 0.5x
x = 10/0.5
x = 20
Hence, 20 movies
B.)
y = 30 + 2x
y = 30 + 2(20)
y = 30 + 40
y = $70
Step-by-step explanation:
7. There is no tree diagram, sticking it as impossible to solve at the moment.
8. The temperature went down 5 degrees and then goes up 7 degrees. The low temperature is -5.
9. The formula is 
, or 1/8
