Mathematics, 14.07.2019 21:00 am2016832
The mean grade of the 30 students in section 1 is 80. the mean grade of the 40 students in section 2 is 85. the mean grade of the 30 students in section 3 is 80. what is the mean grade of all students from the three sections combined?
Answers: 2
Mathematics, 21.06.2019 19:20
Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.
Answers: 3
Mathematics, 21.06.2019 21:30
Which of the following shows the length of the third side, in inches, of the triangle below
Answers: 2
Mathematics, 21.06.2019 23:00
Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.
Answers: 1
The mean grade of the 30 students in section 1 is 80. the mean grade of the 40 students in section 2...
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