The scores on a quiz are normally distributed. the mean of the quiz is 93 and the standard deviation is 4.2. by using the empirical rule, what scores fall 1 standard deviation from the mean? 88.8 and 97.2 84.6 and 101.4 89.2 and 96.8 89 and 101

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125