One winter morning in canada, the temperature at 8: 00 was 1.5°c. from 8: 00 to 11: 00, the temperature increased by 0.7°c. from 11: 00 to 2: 00, it dropped 2.6°c, and from 2: 00 to 5: 00, it decreased by 0.9°c.

what expression shows the temperature in °c at 5: 00 p. m.?

a. 1.5 + 0.7 - (-2.6) - (-0.9) b. 0.7 - (-2.6 - 0.9)

c. 1.5 + 0.7 - (-2.6 - 0.9) d. 1.5 + 0.7 + (-2.6) + (-0.9)

The solution set for 5v2 – 125 = 0 is

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?

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.