Find f(4) please, I need help
1 answer:
You might be interested in
Answer:
t > 4
Step-by-step explanation:
Rearrange:
Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :
-6*t-3-(-2*t-19)<0
Step by step solution :
STEP 1
: Pulling out like terms
Pull out like factors :
-4t + 16 = -4 • (t - 4)
Equation at the end of step 1:
STEP 2:
Divide both sides by -4
Remember to flip the inequality sign:
Solve Basic Inequality :
Add 4 to both sides
T > 4
Inequality Plot :
inequality plot for
-4.000 X + 16.000 > 0
( SEE ATTATCHMENT)
One solution was found :
t > 4
From the data given, we estimate the population mean and population standard deviation. Then, we use this estimate to find a 95% confidence interval for the population variance and the population standard deviation.
Sample:
Salaries in millions of dollars: 2.2, 1.5, 0.5, 1.3, 2.4, 1.5, 2.7, 0.3, 2.0, 0.3
Question a:
The mean is the sum of all values divided by the number of values. So
The sample mean salary is of 1.42 million.
Question b:
The standard deviation is the square root of the difference squared between each value and the mean, divided by one less than the number of values.
So
Thus, the estimate for the population standard deviation is of 0.8772 million.
Question c:
The sample size is
The significance level is
The estimate, which is the sample standard deviation, is of .
Now, we have to find the critical values for the Pearson distribution. They are:
The confidence interval for the population variance is:
Thus, the 95% confidence interval for the population variance is (0.3641, 2.5646)
Question d:
Standard deviation is the square root of variance, so:
The 95% confidence interval for the population standard deviation is (0.6034, 1.6014).
For more on confidence intervals for population mean/standard deviation, you can check brainly.com/question/13807706
Answer:
1080 notebooks
Step-by-step explanation:
30×36 You can simplify this...
3*36=108
108×10=1080
Hope this helps!