Answer: a)
b) 
Step-by-step explanation:
Since we have given that
Number of days in a year = 365
Number of students = 50
Probability that no two students share the same birthday. It means each student has different birthday.
Probability(no two students share the same birthday)
Probability(no two students share the same birthday)
Probability(no two students share the same birthday)
Probability that at least one of the students has the same birthday as another student in the class is given by

The first one (y2=m(x2-x1) +y1
Calculate the square root of 10 ( ) to 2 decimal places. 1
2 percent of the total surface area is painted.
Answer:
1.) What is the difference between the proportion of women with high blood pressure who use oral contraceptive and those who don't?
2.) P1 - P2
3.)
Let P` = population statistic
P1` - P2`
Step-by-step explanation:
Since the experiment is to know if there is a difference between high blood pressure in women who use oral contraceptives or not ; the we can frame the research question thus :
What is the difference between the proportion of women with high blood pressure who use oral contraceptive and those who don't?
2.) P1 - P2
P1 = All women who have high blood pressure and use oral contraceptive
P2 = All women who high blood pressure who don't use oral contraceptive
3.)
P1` - P2` ; (0.15 - 0.10)
P1` = women in the sample (900) who have high blood pressure and use oral contraceptive
P2` = women in the sample (900) who high blood pressure who don't use oral contraceptive