3. If a random variable has the standard normal distribution, find the probability (draw the region...
If a random variable has the standard normal distribution, find the probability that it assumes a value (a) Less than 2.00 (b) Less than -1.96 (c) Greater than 2.58 (d) Greater than -2.33 (e) Between 0.00 and 1.00 (f) Between 0.58 and 2.12 (g) Between -1.65 and -0.84 (h) Between -2.42 and 1.86
pleasa solve questions 3,4 and 5 2. The time required to assemble a piece of machinery is a random variable having a normal distribution with 7.0 and a=1.5 minutes. What are the probabilities (and draw the region) that the assembly of a piece of machinery of this kind will take (a) at least 5 minutes; (b) anywhere from 4 to 8 minutes? 3. Draw the region and determine, (a) 02 (b) 3 (e) 0.15 3. Draw the region and determine,...
A continuous random variable X has a normal distribution with mean 169. The probability that X takes a value greater than 180 is 0.17. Use this information and the symmetry of the density function to find the probability that X takes a value less than 158.
1) A NORMAL DISTRIBUTION HAS 4:47 AND 0=3 FIND THE PROBABILITY A RANDOM VARIABLE WITH THIS DISTRIBUTION WILL BE BETWGEN SO AND SS 2) A SAMPLE OF SIZE 40 is SELECTED AT RANDOM FROM A POPUUTON WITH MEAN 100 AND STANDARD DEVIA. 15. WHAT IS THE PROBABITY THAT X ComourGD FROM THIS SAMPLE IS GREATER THAN 115? 3) A SAMPLE OF SIZE 89 15 SELECTED 17 RANDOM FROM A POPULATION CONSTRUCT A 95% CONFIDENCE INTERVAL FOR THE MEAN OF THIS...
You know that a random variable has a normal distribution with standard deviation of 16. After 10 draws, the average is -12. What is the standard error of the average estimate? If the true mean were -11, what is the probability that we could observe a value between -10.5 and -11.5? You know that a random variable has a normal distribution with standard deviation of 25. After 10 draws, the average is -10. a. What is the standard error of...
Draw the normal curve with the parameters indicated. Then find the probability of the random variable x. shade the area that represents the probability Draw the normal curve with the parametre indicated. Then find the probably of the random Variable Shade the area that represents the probability -48, 9-11, PIX 544) Click here to view page 1 of the standard normal distribution table Click here to view of the standard normal derbution table Which of the following shaded regions corresponds...
Find the following probability for a standard normal random variable, P(-2.5 < Z < 1.58 ). Question 3 options: 1) .0508 2) .9367 3) .1354 4) .1788
A random variable follows the normal probability distribution with a mean of 80 and a standard deviation of 20. Determine the probability for a randomly selected value from this population in parts a through d below. a. is less than 90 b. is less than 65 c. is more than 110 d. is more than 40.
6.33 Let x be a continuous random variable that is normally distributed with a mean of 25 and a standard deviation of 6. Find the probability that x assumes a value a. between 28 and 34 b. between 20 and 35 6.34 Let x be a continuous random variable that has a normal distribution with a mean of 30 and a stan- dard deviation of 2. Find the probability that x assumes a value a. between 29 and 35 b....
A random variable follows the normal probability distribution with a mean of 100 and a standard deviation of 10. Determine the probability for a randomly selected value from this population in parts a through d below. Click here to view page 1 of the standard normal probability table. Click here to view page 2 of the standard normal probability table. a. What is the probability that the value is less than 80? The probability that the value is less than...