A) the probability that a pupil in a class has a calculator is 0.87 what is the probability that a pupil does not have a calculator? b) the probability of a football team winning a match is 0.3 the probability of the same football team losing a match is 0.55 what is the probability of the same football team drawing a match?

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

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.