Question

TRUE or FALSE. Write A if the statement is true and if not, write B. 31. ² = ∑( − ) 2 • P(x) is the same as ² = ∑ • () − 32. The value of the mean is needed in computing the variance and standard deviation. 33. The second step in finding the mean of the probability distribution is to multiply the value of the random variable X by the corresponding probability. 34. P(1)=0.25, P(2)=0.75, P(3)=0.25, and P(4)=-0.25 is an example of a probability distribution. 35. A probability mass function is a discrete probability distribution. 36. The set of possible outcomes of an activity is called statistics. 37. means the standard deviation 38. The continuous random variables represent measured data. 39. The weight of the baby is an example of a discrete random variable. 40. The list of outcomes of an activity is called sample space.

Answer 1

Answer:

sorry my maths is a litlle weak so bye