Mathematics, 25.06.2019 18:00 camila68
500 tickets were sold for a concert. some cost $5 and some cost $8. the cash received for the expensive tickets was $100 more than the cheaper tickets. find the number of each kind of ticket which were sold.
Answers: 1
Mathematics, 21.06.2019 15:00
1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.
Answers: 1
Mathematics, 21.06.2019 17:20
Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?
Answers: 2
Mathematics, 22.06.2019 00:00
What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?
Answers: 1
Mathematics, 22.06.2019 00:30
Find the values of the variables and the lengths of the sides of this kite.
Answers: 3
500 tickets were sold for a concert. some cost $5 and some cost $8. the cash received for the expens...
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