Answer:
a) 0.16
b) 0.0518
c)
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
For a proportion p in a sample of size n, we have that the mean is and the standard deviation is
In this problem, we have that:
a. Find the mean of p, where p is the proportion of minority member applications in a random sample of 2100 that is drawn from all applications.
The mean of p is 0.16.
b. Find the standard deviation of p.
c. Compute an approximation for P ( p leq 0.15), which is the probability that there will be 15% or fewer minority member applications in a random sample of 2100 drawn from all applications. Round your answer to four decimal places.
This is the pvalue of Z when X = 0.15. So
has a pvalue of 0.4247
Answer:
Radius of the sphere = r
<u>Volume of sphere:</u>
Radius of the hemisphere = 2r
<u>Volume of the hemisphere:</u>
- V₂ = 1/2×4/3×π(2r)³ = 1/2×8×4/3πr³ = 4V₁
The volume of the hemisphere is 4 times greater than the volume of the sphere
Lol this is what I am doing to earn points
B- 243
The 5 means that you raise 9 to the 5th power, and the 2 means that you square root that result.
= 59,049
√59049 = 243