9. Find the probability of selecting a z score less than 1.81. (I point) 0.9351 0.9649...
What is the probability of randomly selecting a z-score greater than z = -0. 75 from a normal distribution?
What is the probability of randomly selecting a z-score greater than z = 0.75 from a normal distribution?
what is the probability of randomly selecting an individual from a normal distribution with a z score less than 0
In a normal distribution, the probability of selecting a score that is greater than the mean is p = 0.50.
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
1) Given a standard normal distribution, find the probability of having a z score higher than 1.67 ```{r} ``` 2) Given that test scores for a class are normally distributed with a mean of 80 and variance 36, find the probability that a test score is lower than a 45. ```{r} ``` 3) Given a standard normal distribution, find the Z score associated with a probability of .888 ```{r} ``` 4) Find the Z score associated with the 33rd quantile...
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?
Consider a value to be significantly low if it's z score less than or equal to -2 or consider a value to be significantally high if it's z score is greater than or equal to 2. A test is used to assess readiness for college. In recent year, the mean test score was 22.8 and the standard deviation was 5.3. Identify the test scores that are significantly low or significantly high. What test scores are significantly low? What test scores are significantly high? (Please...
4. Assume that a randomly selected subject is given a score. Those scores are normally distributed with mean 0 and standard deviation 1. In each case, draw the graph (optional), then find the probability of the given scores. ROUND YOUR ANSWERS TO 4 DECIMAL PLACES a. Find the probability of selecting a subject whose score is less than 1.13. ____________ b. Find the probability of selecting asubject whose score is greater than -1.28. ___________ c. Find the probability of selecting...
Two dice are rolled. Find the probability of getting: A sum greater than 9 or less than 4 (round to 4 decimal places)