HomeworkLib
Question

its applied engineering data analysis course

Q1 A standard normal variable has a mean of zero and a variance of 1 ie. Z N(0, 1). SKETCH THE AREA and find the following probabilities: 1. P(Z 1.25) 2. P(Z s-1.25) 3. P(-.38 3 Z 3.25)

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

DATE Sol uutom 2.5 12与 lator Gbv For z is Ha airta unde く1.254O.38 -338-0-0.2s -o.38 o.59870.3 52

0 0
Add a comment
Know the answer?
Add Answer to:
its applied engineering data analysis course Q1 A standard normal variable has a mean of zero...
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

  • its applied engineering data analysis course Q2 A standard normal variable has a mean of zero...

    its applied engineering data analysis course Q2 A standard normal variable has a mean of zero and a variance of 1 ie. Z* N(0, 1). SKETCH THE AREA and find the following z that fulfills the probability: 1. P(Zsz) -0.1 2. P(Z2z or Zs-z) -0.1 3. At what value of z, the area to the right is 2.5%? 4. At what value of z, the area between-z and z is 68%?

  • its applied engineering data analysis course Q3 A signal frequency measurement shows that frequency, X, is...

    its applied engineering data analysis course Q3 A signal frequency measurement shows that frequency, X, is normally distributed with a mean of 100 and a variance of 5 ie X N (100, 5). SKETCH THE AREA and calculate the following probabilities: a. P(90 s X S125) b. P(X298) c. Find the x such that P(X Sx)-0.1 d. Find the range that contains the MIDDLE 90% of the observations: ie. find 'a, such that x is in [100-a, 100 + a]...

  • its applied engineering data analysis course Q4 X is the diameter (in mm) of tires, normally...

    its applied engineering data analysis course Q4 X is the diameter (in mm) of tires, normally distributed with mean 575 and a standard deviation of 5 SKETCH THE AREA of P(575 < X < 579) in both X and Z and find P Find the diameter x such that there are only 1% tires longer than this diameter ie. P[X>x] 0.01 Find the (diameters of) tires that have most extreme 5% diameters. a. b. C.

  • its Applied Engineering Data Analysis course

    its Applied Engineering Data Analysis course

  • Question 2 options: Assume Z is a standard normal random variable with mean 0 and variance...

    Question 2 options: Assume Z is a standard normal random variable with mean 0 and variance 1. Find P(Z<1.48)? Area below 1.48? Note: Enter X.XX AT LEAST ONE DIGIT BEFORE THE DECIMAL, TWO AFTER and round up. Thus, 27 is entered as 27.00, -3.5 is entered as -3.50, 0.3750 is entered as 0.38 | | Assume Z is a standard normal random variable with mean 0 and variance 1. Find P(Z>0.67)? Area above 0.67? Note: Enter X.XX AT LEAST ONE...

  • A) 0.7995 11. If Z is a standard normal variable find the probabilities of a) P(Z...

    A) 0.7995 11. If Z is a standard normal variable find the probabilities of a) P(Z <-0.35)- @w B) 0.3982 C) 1.2008 D) p.4013 (2 points) b) P(0.25s Z<1.55) (3 points) c) P(Z > 1.55) (2 points) 12. Assume that X has a normal distribution with mean deviation .5. Find the following probabilities: 15 and the standard a) P(X < 13.50)- 3 points). b) P (13.25 <X < 16.50)- (5 points). B) 0 2706 C0 5412 D) 1.0824 A mountuin...

  • 1. (5 points) Suppose Z is a random variable that follows the standard normal distribution. a)...

    1. (5 points) Suppose Z is a random variable that follows the standard normal distribution. a) Find P(Z > 0.45). b) Find P(0.7 SZ 1.6). c) Find 20.09. d) Find the Z-score for having area 0.18 to its left under the standard normal curve. e) Find the value of z such that P(-2SZS2) -0.5. 3. (4 points) The scores on a test are normally distributed with a mean of 75 and a standard deviation of 8. a) Find the proportion...

  • 2. Given that z is a standard normal random variable, computethe following probabilities. P(-1 ≤...

    2. Given that z is a standard normal random variable, compute the following probabilities.  P(-1 ≤ z ≤ 0) (Round to four decimal places) Answer  P(-1.5 ≤ z ≤ 0) (Round to four decimal places) Answer  P(-2 < z < 0) (Round to four decimal places) Answer  P(-2.5 < z < 0) (Round to four decimal places) Answer  P(-3 ≤ z ≤ 0) (Round to four decimal places)  3. Given that z is a standard normal random variable, compute the...

  • The random variable Z follows a normal distribution with a mean of 0 and a standard...

    The random variable Z follows a normal distribution with a mean of 0 and a standard deviation of 1. 1. What is P(Z ≤ -1.54)? Include 4 decimal places in your answer. 2. What is P(Z ≥ 0.45)? Include 4 decimal places in your answer. 3. What is P(-1.25 ≤ Z ≤ 0.65)? Include 4 decimal places in your answer. 4. What is the 45th percentile of Z? That is, what is the value of Z where the cumulative probability...

  • Find the following probabilities for a standard normal variable, Z 1) P(Z<-1.27) 2) P(-2.03<Z<3.49) 3) P(Z>1.74)...

    Find the following probabilities for a standard normal variable, Z 1) P(Z<-1.27) 2) P(-2.03<Z<3.49) 3) P(Z>1.74) 4)P(Z<0.17) B. Find z if we know that the area to the left of z (under the normal curve) is 0.9265.

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