Question

Assume a member is selected at random from the population represented by the graph. Find the...

Assume a member is selected at random from the population represented by the graph. Find the probability that the member selected at random is from the shaded area of the graph. Assume the variable x is normally distributed. 200<x<450 u=502 sigma=107

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

This is a normal distribution question with

x1 = 200
x2 = 450
P(200.0 < x < 450.0)=?


This implies that


PS: you have to refer z score table to find the final probabilities.


Please hit thumbs up if the answer helped you

0 0
Know the answer?
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
Similar Questions
1) Find the area of the shaded region. The graph to the right depicts IQ scores...
1) Find the area of the shaded region. The graph to the right depicts IQ scores of​ adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. x=90 The area of the shaded region is __. (Round to four decimal places as​ needed.) 2) Find the area of the shaded region. The graph to the right depicts IQ scores of​ adults, and those scores are normally distributed with a mean of 100...
1.Assume the random variable x is normally distributed with mean mu=83 and standard deviation sigma=5. Find...
1.Assume the random variable x is normally distributed with mean mu=83 and standard deviation sigma=5. Find the indicated probability. ​P(X<76​) 2. Find the indicated​ z-score shown in the graph to the right. Area= 0.7357 3.find the critical value tc for the confidence level c=0.99 and sample size n=7.
1. Assume that a randomly selected subject is given a bone density test. Those test scores...
1. Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the bone density test scores that can be used as cutoff values separating the lowest 6​% and highest 6​%, indicating levels that are too low or too​ high, respectively. 2. Assume that the readings on the thermometers are normally distributed with a mean of 0°...
Assume that a simple random sample has been selected from a normally distributed population. We want...
Assume that a simple random sample has been selected from a normally distributed population. We want to test the claim that for the population of female college students at a particular university, the mean weight is given by μ=155lb. The sample data are summarized as follow: n=20, x=160lb, and s=18.5 lb. Use a significant level of α=0.5. a. Identify the relevant variable and parameter b. State null and alternative hypothesis c. Find the test statistic value d. Find and interpret...
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Compute...
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Compute the probability. Be sure to draw a normal curve with the area corresponding to the probability shaded. What is P(56 ≤ X ≤ 66) ?
assume the random variable X is normally distributed with mean 50 in standard deviation =7 compute...
assume the random variable X is normally distributed with mean 50 in standard deviation =7 compute the probability, be sure to draw a normal curve with area corresponding to the probability shaded P(54 less than eaual to X less than equal to 66) =
Assume the random variable x is normally distributed with mean u=90 and standard deviation o=4. Find...
Assume the random variable x is normally distributed with mean u=90 and standard deviation o=4. Find the indicated probability. ​P(77<x<86)
Suppose a random sample of n = 25 observations is selected from a population that is...
Suppose a random sample of n = 25 observations is selected from a population that is normally distributed with mean equal to 108 and standard deviation equal to 14. (a) Give the mean and the standard deviation of the sampling distribution of the sample mean x. mean     standard deviation     (b) Find the probability that x exceeds 113. (Round your answer to four decimal places.) (c) Find the probability that the sample mean deviates from the population mean ? = 108...
Suppose a random sample of n = 16 observations is selected from a population that is...
Suppose a random sample of n = 16 observations is selected from a population that is normally distributed with mean equal to 102 and standard deviation equal to 10. a) Give the mean and the standard deviation of the sampling distribution of the sample mean x. mean = standard deviation = b) Find the probability that x exceeds 106. (Round your answer to four decimal places.) c) Find the probability that the sample mean deviates from the population mean μ...
assume that the random variable x is normally distributed, with mean=90 and standard deviation=12. compute the...
assume that the random variable x is normally distributed, with mean=90 and standard deviation=12. compute the probability p(57<x<107).
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT