Answer: $600
Step-by-step explanation:
Given that you're trying to round to the nearest tens, you should look at the ones place, in this case 4. Given that 4 is less than 5, and anything less than 5 rounds down, you should round down to $600 instead of $610.
Hope this helps!
The formula for the standard error is this:
σM = σ / √N
where
σM is the standard error
σ is the standard deviation
N is the number of samples
So,
σM = 0.45 / √50
σM = 0.0636 or 6.36%
The standard error is 0.0636
Written as a fraction 3/50
Answer:
B
Step-by-step explanation:
We are 90% confident the proportion of students planning to attend public colleges who attended public high schools is between 0.0152 lower than to 0.2152 higher than the proportion of students planning to attend public colleges who attended private high schools.
