L 11.4.3 Quiz: Confidence intervals: Sample Proportions Question 2 of 10
Sample A and sample B are from the same population. If the sample
proportion for sample A is 0.42, the sample proportion for sample B has to be
0.42.
A. True
B. False
SUBMIT

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Use sigma notation to represent the following series for 9 terms.

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.