Question

Let the random variable X follow a normal distribution with μ = 60 and σ^2=64. a....

Let the random variable X follow a normal distribution with μ = 60 and σ^2=64.

a.

 Find the probability that X is greater than 70.

b.

 Find the probability that X is greater than 45 and less than 74.

c.

 Find the probability that X is less than 65.

d.

 The probability is 0.2 that X is greater than what​ number?

e.

 The probability is 0.05 that X is in the symmetric interval about the mean between which two​ numbers?
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
Let the random variable X follow a normal distribution with µ = 18 and σ =...
Let the random variable X follow a normal distribution with µ = 18 and σ = 4. The probability is 0.99 that X is in the symmetric interval about the mean between two numbers, L and U (L is the smaller of the two numbers and U is the larger of the two numbers). Calculate L.
Let the random variable X follow a normal distribution with µ = 22 and σ =...
Let the random variable X follow a normal distribution with µ = 22 and σ = 4. The probability is 0.90 that Xis in the symmetric interval about the mean between two numbers, L and U (L is the smaller of the two numbers and U is the larger of the two numbers). Calculate U.
5.19) Let the random variable X follow a normal distribution with U(mu) = 50 and S2...
5.19) Let the random variable X follow a normal distribution with U(mu) = 50 and S2 = 64. e. The probability is 0.05 that X is in the symmetric interval about the mean between which two numbers?
Let the random variable X follow a normal distribution with muμequals=4040 and sigmaσ2equals=6464. a. Find the...
Let the random variable X follow a normal distribution with muμequals=4040 and sigmaσ2equals=6464. a. Find the probability that X is greater than 5050. b. Find the probability that X is greater than 2020 and less than 5252. c. Find the probability that X is less than 4545. d. The probability is 0.30.3 that X is greater than what​ number? e. The probability is 0.070.07 that X is in the symmetric interval about the mean between which two​ numbers?
Let X be a random variable with a mean distribution of mean μ = 70 and...
Let X be a random variable with a mean distribution of mean μ = 70 and variance σ2 = 15. d) Imagine a symmetric interval around the mean (μ ± c) of the distribution described above. Find the value of c such that the probability is about 0.2 that X is in this interval. Please explain how to get the answer
Let the random variable X follow a normal distribution with µ = 19 and σ2 =...
Let the random variable X follow a normal distribution with µ = 19 and σ2 = 8. Find the probability that X is greater than 11 and less than 15.
Let the random variable X follow a normal distribution with µ = 18 and σ2 =...
Let the random variable X follow a normal distribution with µ = 18 and σ2 = 11. Find the probability that X is greater than 10 and less than 17.
Let x be a continuous random variable that has a normal distribution with μ=85 and σ=12....
Let x be a continuous random variable that has a normal distribution with μ=85 and σ=12. Assuming n/N ≤ 0.05, find the probability that the sample mean, x¯, for a random sample of 18taken from this population will be between 81.7 and 90.4. Round your answer to four decimal places.
Let the random variable X follow a Normal distribution with variance σ2 = 625. A random...
Let the random variable X follow a Normal distribution with variance σ2 = 625. A random sample of n = 50 is obtained with a sample mean, X-Bar of 180. What is the probability that μ is between 198 and 211? What is Z-Score1 for μ greater than 198?
For Questions 6 - 8, let the random variable X follow a Normal distribution with variance...
For Questions 6 - 8, let the random variable X follow a Normal distribution with variance σ2 = 625. Q6. A random sample of n = 50 is obtained with a sample mean, X-Bar of 180. What is the probability that population mean μ is greater than 190? a. What is Z-Score for μ greater than 190 ==> b. P[Z > Z-Score] ==> Q7. What is the probability that μ is between 198 and 211? a. What is Z-Score1 for...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT