Mathematics, 03.12.2020 01:00 googoo4
The amount of time a certain brand of light bulb lasts is normally distribued with a
mean of 1200 hours and a standard deviation of 100 hours. Using the empirical rule,
what percentage of light bulbs last between 1100 hours and 1300 hours?
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, 21.06.2019 18:30
Find the area of the regular hexagon if a side is 20 cm.
Answers: 2
Mathematics, 22.06.2019 01:30
Apply distributive property to write equivalent equation 105Γ35m
Answers: 1
The amount of time a certain brand of light bulb lasts is normally distribued with a
mean of 1200 h...
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