Answer:
C) Sample: the 120 students surveyed. Population: the 1200 students at the high school. Parameter of interest: the average number of hours a student at this high school sleeps per night.
Step-by-step explanation:
- Population is the total units of study for the research.
- Sample is the selected units, chosen for conducting the research study.
- Parameter of interest is the characteristic or variable, that is studied related to the population or sample
Research of average hours of sleep in a school; on the basis of 120 students selected for the study; are :-
- Population is the total number of students in the school, i.e = 1200 students
- Sample is the selected number of students, chosen (enquired) for the study, i.e = 120 students
- The parameter of interest is the variable of students, that needs to be studied, i.e average sleep hours.
Answer:
$128,270
Step-by-step explanation:
Hello!
The income amount $168,050 fits into the fourth line of the table ($82,250-$171,550). The tax on $168,050 is found as follows:
$16,750 plus 0.28 times the amount over $82,250.
Let's figure the tax: $16,750 + 0.28($82,250) = $16,750 + $23,030, or
$39,780. If this tax is deducted from the person's gross pay, the amount left ("take home pay") will be $168,050 - $39,780, or $128,270.
Yo sup??
P(A|B)=P(A∩B)/P(B)
P(A∩B)=probability of finding a girl and is sophomore
P(B)=probability of finding a sophomore
P(A|B)=9/10
Hope this helps.
This In a fraction form 23/100
Decimal form 0.23
And this is as a ratio 23 divided/ 100