Answer:
Step-by-step explanation:
Angle PRQ is inscribed in a semi-circle, so the angle is a right angle.
4z - 10 = 90
Add 10 to both sides.
4z = 100
Divide both sides by 4.
z = 25
Answer:
Yes
Step-by-step explanation:
992 divided by 90 is 11.02, so yes
You would have to know the height of the 8th graders
Answer:
the answer is 100 you welcome
Answer:
The answer is below
Step-by-step explanation:
Given that mean (μ) = 266 days, standard deviation (σ) = 16 days, sample size (n) = 16 women.
a) The mean of the sampling distribution of Xbar () is given as:
The standard deviation of the sampling distribution of Xbar () is given as:
b) The z score is a measure in statistics used to determine by how much the raw score is above or below the mean. It is given by:
For x > 270 days:
The probability the average pregnancy length exceed 270 days = P(x > 270) = P(z > 1) = 1 - P(z < 1) = 1 - 0.8413 = 0.1587 = 15.87%