Mathematics, 27.11.2019 21:31 rhaquan66766
Two groups of students (80 each) are selected randomly from a department. they are asked to test the ph value of a compound. x and y are the random variables that represent the results from the 2 groups. they are independent and follows the same unknown distribution, with known expectations of 5 and variances of 0.3. 7gbt3whkcetlqmsuvork5cyii= and oaarmma+hnkp6bjru5erkjggg== are the means of results from the 2 groups, respectively. find the probability that the difference between the means of the 2 groups is not greater than 0.1.
Answers: 2
Mathematics, 21.06.2019 18:00
Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.
Answers: 2
Two groups of students (80 each) are selected randomly from a department. they are asked to test the...
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