We appreciate your visit to Suppose you are picking seven women at random from a university to form a starting lineup in an ultimate frisbee game Assume that women s. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
The probability that 3 or more of the randomly selected seven women from the university are 68 inches or taller can be calculated using the normal distribution.
The probability can be found by determining the area under the normal curve corresponding to the heights equal to or greater than 68 inches.
Using the given mean of 64.5 inches and standard deviation of 2.25 inches, we can standardize the height value of 68 inches by subtracting the mean and dividing by the standard deviation:
z = (x - μ) / σ
= (68 - 64.5) / 2.25
= 1.56
Next, we need to find the probability of a randomly selected woman having a height of 68 inches or taller, which corresponds to the area under the normal curve to the right of z = 1.56.
Using a standard normal distribution table or a calculator, we can find this probability to be approximately 0.0594.
To find the probability of 3 or more women being 68 inches or taller, we can use the binomial distribution. The probability of exactly 3 women being 68 inches or taller is calculated as:
P(X = 3) = C(7, 3) * (0.0594)^3 * (1 - 0.0594)^(7 - 3)
= 35 * 0.0594^3 * 0.9406^4
≈ 0.155
Similarly, we can calculate the probabilities for 4, 5, 6, and 7 women being 68 inches or taller and sum them up:
P(X ≥ 3) = P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) + P(X = 7)
≈ 0.155 + (C(7, 4) * 0.0594^4 * 0.9406^3) + (C(7, 5) * 0.0594^5 * 0.9406^2) + (C(7, 6) * 0.0594^6 * 0.9406^1) + (C(7, 7) * 0.0594^7 * 0.9406^0)
≈ 0.155 + 0.0266 + 0.0036 + 0.0003 + 0.00001
≈ 0.185
Therefore, the probability that 3 or more of the women randomly selected from the university are 68 inches or taller is approximately 0.185.
To know more about the probability refer here:
https://brainly.com/question/30034780#
#SPJ11
Thanks for taking the time to read Suppose you are picking seven women at random from a university to form a starting lineup in an ultimate frisbee game Assume that women s. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!
- Why do Businesses Exist Why does Starbucks Exist What Service does Starbucks Provide Really what is their product.
- The pattern of numbers below is an arithmetic sequence tex 14 24 34 44 54 ldots tex Which statement describes the recursive function used to..
- Morgan felt the need to streamline Edison Electric What changes did Morgan make.
Rewritten by : Barada
