ZuoTi.Pro
Question

The heights of trees in a large grove are normally distributed with a mean of 85...

  1. The heights of trees in a large grove are normally distributed with a mean of 85 feet and a standard deviation of 10 feet. Explain your answers and provide a drawing of the probability (area under the curve) for each situation.
  1. What is the probability that a tree selected at random is more 100 feet tall?
  2. What is the percentile rank of a tree that is 80 feet tall?
  3. What is the minimum height of a tree that is in the top 10% of heights?
math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Here wi havL 1- 0.9332 D. 0668 の 10.30 8S area 308 0 I- Pl2< x-- o.io I o to 1 0 x 97. area 0.10 o y.

0 0
Add a comment
Know the answer?
Add Answer to:
The heights of trees in a large grove are normally distributed with a mean of 85...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • The heights of pecan trees are normally distributed with a mean of 10 feet and a...

    The heights of pecan trees are normally distributed with a mean of 10 feet and a standard deviation of 2 feet. Show all work. Just the answer, without supporting work, will receive no credit. (a) What is the probability that a randomly selected pecan tree is between 9 and 12 feet tall? (Round the answer to 4 decimal places) (b) Find the 80th percentile of the pecan tree height distribution. (Round the answer to 2 decimal places) (a) For a...

  • The heights of pecan trees are normally distributed with a mean of 10 feet and a...

    The heights of pecan trees are normally distributed with a mean of 10 feet and a standard deviation of 2 feet. Show all work. Just the answer, without supporting work, will receive no credit. (a) What is the probability that a randomly selected pecan tree is between 8 and 13 feet tall? (round the answer to 4 decimal places) (b) Find the 80th percentile of the pecan tree height distribution. (round the answer to 2 decimal places) (c) To get...

  • Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean...

    Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean = 117 inches and standard deviation o = 14 inches. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least four decimal places. (a) What proportion of trees are more than 129 inches tall? (b) What proportion of trees are less than 100 inches tall? (c) What is the probability that a randomly chosen tree is between 85 and...

  • Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean...

    Tree heights: Cherry trees in a certain orchard have heights that are normally distributed with mean - 114 inches and standard deviation - 14 inches. Use the TI-84 PLUS calculator to answer the following. Round the answers to at least two decimals. (a) Find the 28" percentile of the tree heights. (b) Find the 84 percentile of the tree heights. (c) Find the third quartile of the tree heights. (d) An agricultural scientist wants to study the tallest 1% of...

  • Suppose it is known that heights of 8 year old Unrisunas trees are approximately normally distributed...

    Suppose it is known that heights of 8 year old Unrisunas trees are approximately normally distributed with a mean of 75.5" and standard deviation or = 8.3". [5 pts) What is the probability that a randomly selected tree is taller than 74”? [2 pts] If we sample 14 of those trees, what is the standard deviation of the distribution of sample means for this sample? [4 pts] If you sample 14 trees, what is the probability that the mean height...

  • Suppose that the diameters of oak trees are normally distributed with a mean of 4 feet...

    Suppose that the diameters of oak trees are normally distributed with a mean of 4 feet and a standard deviation of 0.375 feet. Step 4 of 5: If we wanted to look at the top 15% of trees, what would their minimum diameter be? [Round to 2 decimals] Suppose that the diameters of oak trees are normally distributed with a mean of 4 feet and a standard deviation of 0.375 feet. Step 5 of 5: If we know that all...

  • b) the area to the gut UI c) the area that lies between - 1.02 and...

    b) the area to the gut UI c) the area that lies between - 1.02 and 0.89. Dc -0.73 to 2 1.35, d) the area that lies outside the interval from 2 nominal Cdbl-.13,l. ,0,1) 2. Suppose that the heights of pecan trees in a specific region are normally distributed with a mean of 41 feet and a standard deviation of 8.2 feet. a) What is the 90th percentile of the heights of the pecan trees? Round to one decimal...

  • HW 5.1,5.2 Score: 16.95/24 15/18 answered Question 18 Suppose that tree heights in a forest are...

    HW 5.1,5.2 Score: 16.95/24 15/18 answered Question 18 Suppose that tree heights in a forest are uniformly distributed from 7 to 33 feet. Round answers to one decimal if needed. a. What is the 18th percentile for tree heights? b. What percentile is a tree 27 feet tall? c. What is the cutoff (in feet) for the tallest 18% of trees? d. Out of a random sample of 35 trees, how many would you expect to be more than 27...

  • The heights of fully grown trees of a specific species are normally​ distributed, with a mean...

    The heights of fully grown trees of a specific species are normally​ distributed, with a mean of 61.0 feet and a standard deviation of 6.00 feet. Random samples of size 19 are drawn from the population. Use the central limit theorem to find the mean and standard error of the sampling distribution. Then sketch a graph of the sampling distribution. The mean of the sampling distribution is ?. The standard error of the sampling distribution is ?

  • Men’s heights are normally distributed with a mean of 69.0 inches and a standard deviation of...

    Men’s heights are normally distributed with a mean of 69.0 inches and a standard deviation of 2.8 inches. a) What is the probability that a man selected at random is at least 72 inches tall? Round the answer to 4 decimal places. b) The Mark VI monorail used at Disney World has doors with a height of 72 inches. What doorway height would allow 98% of adult men to fit without bending?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT