Question 10 6 pts In a normal distribution, what is the approximate probability (as a percentage)...
For a normal distribution of test scores, what is the probability of randomly selecting a test with a z-score of less than 0.24?
what is the probability of randomly selecting an individual from a normal distribution with a z score less than 0
QUESTION 27 Using the Standard Normal Table. What is the probability a z-score is between -1.11 and 0.91? In other words, what is P( -1.11 < z < 0.91)? A. 0.6851 B. 0.5186 C. 0.9521 D. 0.0479 QUESTION 28 Consider this question: For a certain set of data, what percentage of individuals would have a z-score less than 1.45? (Hint: this is asking what percentage of the normal curve would fall less than that z-score.) (Hint: think about where this...
uwpks.instructure.com Question 9 4 pts What proportion of a normal distribution is located above z = 1.50? 0.9332 0.0668 0.4332 0.1336 Question 10 4 pts A normal distribution has a mean of u = 100 with = 20. If one score is randomly selected from this distribution, what is the probability that the score will be less than X - 84? 0.7881 0.5762 0.2881 0.2119
6. A normal distribution of has a mean of 20 and a standard deviation of 10. Find the z-scores corresponding to each of the following values: (10 points) a) What is the z score for a value of 30? b) What is the z score for a value of 10? c) What is the z score for a value of 15? d) What it P(20<x<30)? e) What is P (x > 10)? ) What is P (x < 15)? g)...
Question 4 10 pts Percentage of scores falling between z's of 50 and 1.25. Question 5 10 pts Percentage of scores falling between z's of -53 and +84 Question 6 10 pts On a normal distribution with a mean of 200 and a standard deviation of 50, what percentage of cases will fall between a raw score of 185 and 195?
In a standard normal distribution, find the following values: The probability that a given z score is less than -2.67 The probability that a given z score is between 1.55 and 2.44 The z scores that separates the most inner (middle) 82% of the distribution to the rest The z score that separate the lower 65 % to the rest of the distribution
For a normal distribution with µ = 200 and s = 50, find the following values. [Hint: First find the z-score from the Standard Normal Table at the back of your text and then find the X value]. a. What X value separates the highest 10% of the distribution from the rest of the scores? b. What X values form the boundaries for the middle 60% of the distribution? c. What is the probability of randomly selecting a score greater...
Question 7 1 pts The scores on Quiz 2 follows the normal distribution with a mean of 8 and a standard deviation of 0.5. (Round your answers to two decimal places).What is the probability that a randomly selected student has a score below 8? 0.95 0.05 O.50 0.45
Question 183 pts In a normal distribution, what percentage of sample observations fall between the mean and .71 standard deviations above or below the mean? 1.96% 76.11% 26.11% 13.6%