7.6.PS-7 Question Help The tree diagram shows the sample space of two-digit numbers that can be created using the digits 5, 7, 6, and 4. What is the probability of choosing a number from the sample space that contains both 7 and 4? Click the icon to view the tree diagram. P(7 and 4) = or 3% possible outcomes, which There are possible outcomes that include both 7 and 4. There are are equally likely. (Type integers, fractions, or mixed numbers.) Enter your answer in the edit fields and then click Check Answer. All parts showing Clear All herk ons Ne Review progress Question 2 of 4 + Back Next →​

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.