Evaluate √16-x when x=8.
1 answer:
You might be interested in
Answer:
The standard error for the distribution of exam grades is 1.482.
Step-by-step explanation:
The data provided is attached below.
Steps to compute the standard error of exam grades in SPSS are as follows:
Step 1:
Enter the data in a SPSS sheet
Step 2:
Go to Analyze → Descriptive Statistics → Descriptives...
A dialog box will open.
Step 3:
Move Score to the box labelled as "Variable(s)"
Step 4:
Go to options.
A dialog box will open.
Step 5:
Select all the statistics value required. Press OK.
Step 6:
Press OK.
The SPSS output is attached below.
The standard error for the distribution of exam grades is 1.482.
Answer:
30 first-class tickets were sold and 260 coach tickets were sold.
Step-by-step explanation:
Let a first-class ticket be represented by f and let a coach ticket be represented by c.
On a particular flight, a jumbo jet was carrying 290 passengers. So, the sum of the first-class tickets and coach tickets must sum to 290:
The total income was $95,280. Therefore:
We can now solve the system of equations. First, we can simplify the second equation by dividing everything by 8:
From the first equation, we can subtract f from both sides:
Substitute:
Distribute:
Simplify:
So:
From the previous equation:
Substitute:
30 first-class tickets were sold and 260 coach tickets were sold.