Mathematics, 23.03.2021 06:30, tommy6668
A study of 420,033 cell phone users found that 133 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0324% for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system
Answers: 2
Mathematics, 21.06.2019 16:20, HAMILTRASHANDIKNOWIT
Giuseppi's pizza had orders for $931.00 of pizzas. the prices were $21 for a large pizza, 514 for a medium pizza, and $7 for a small pizza. the number of large pizzas was two less than four times the number of medium pizzas. thenumber of small pizzas was three more than three times the number of medium pizzas. how many of each size of pizza were ordered?
Answers: 1
Mathematics, 21.06.2019 17:00, sciencecreation87
Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.
Answers: 1
Mathematics, 21.06.2019 17:40, nicole5918
Which of the following are accepted without proof in a logical system? check all that apply.
Answers: 1
Mathematics, 21.06.2019 18:00, ARandomPersonOnline
A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees
Answers: 2
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