The distribution of GPAs is normally distributed with a mean of 2.7 and a standard deviation...
GPAs at CCCOnline are normally distributed with a mean of 2.25 and a standard deviation of 0.46. Find the z-score for a GPA of 3.13. 1.087 1.804 0.8478 1.913 1.261 1.109 Adult men have heights with a mean of 69.0 inches and a standard deviation of 8 inches. Find the z-score of a man 76.9 inches tall. (to 2 decimal places) The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs....
28) At one college, GPA's are normally distributed with a mean of 2.7 and a standard deviation of 0.4. What percentage of students at the college have a GPA between 2.3 and 3.1?
GPAs at CCSU are normally distributed with a mean of 2.45 and a standard deviation of 0.49. Find the 2score for a GPA of 3.18 0.918 1.327 1.612 1490 0.2041 0.4898
all questions. Do not round answers 1. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a. What percentage of scores is between 55 and i 15? b. In a group of 20,000 randomly selected individuals, how many have an IQ score of 130 or more? 2. A Honda Civic has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 33 mpg and a standard deviation of...
Suppose that the student body in a large university have normally distributed GPAs with a mean of μ=2.91 and standard deviation σ=0.38. You randomly select a sample of n=29 students. The probability is 0.95 (with the complement split evenly between the tails) that the standard deviation of your sample will be between what two numbers? Round your answers to four decimal places. ________ ≤ s ≤ ________
The scores on a psychology exam were normally distributed with mean of 55 and a standard deviation of 5. A failing grade on the exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score? Approximately what percentage of the students failed? The cutoff for a failing score was 45. (Simplify your answer.) Approximately percent of the students failed. (Round to one decimal place as needed.)
1) The weights of bowling balls are normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 bowling balls is selected. What is the probability that the average weight of the sample is less than 11.00 pounds? Write only a number as your answer. Round to 4 decimal places (for example 0.0048). Do not write as a percentage. 2) A survey of high school students revealed that the numbers of soft drinks consumed per month...
Let two variables and are bivariately normally distributed with mean vector component and and co-variance matrix shown below: . (a) What is the probability distribution function of joint Gaussian ? (Show it with and ) (b) What is the eigenvalues of co-variance matrix ? (c) Given the condition that the sum of squared values of each eigenvector are equal to 1, what is the eigenvectors of co-variance matrix ? please help with all parts! thank you! X1 We were unable...
ii) Suppose that the final mark for students in MATH1131 is approximately normally distributed with mean 59 and the standard deviation 7.44. Given that the pass marks is 50, what percentage of MATH1131 stu- dents are expected to pass? ii) Suppose that the final mark for students in MATH1131 is approximately normally distributed with mean 59 and the standard deviation 7.44. Given that the pass marks is 50, what percentage of MATH1131 stu- dents are expected to pass?
iq scores are normally distributed with a mean of 100 and a standard deviation of 15. what percentage of people have between 60 and 85 or above 100. show work