The mean score of students on an aptitude test is 72 points with a standard deviation of 8 points. What is the
probability that two groups of students, consisting of 28 and 36 students, respectively, will differ in their
mean scores by (a) 3 or more points, (b) 6 or more points, and (c) between 2 and 5 points?
Answers
Step-by-step explanation:
hello a very good morning ☺️☀️☀️j ó i n all CAV-CVMG-YGQ
This question, we're given the length of time taken by scholars on an algebra test is typically distributed me 28 Gender divagation1.5 and were asked for the proportion of scholars who'll finish the test if a 30 nanosecond time limit is set, so the probability that they will take lower than or equals to 30 twinkles, That is the probability Z is lower than or equals to1.33. The probability then's.9082, Part B. We are told six scholars are taking the test moment, whereas a problem all six will finish the test. So we've been, We've our probability of success.9082, they are all independent, so presumably all six will finish Within the time limit is presumably that each one of them will finish within the time limit and that is.
#SPJ3