Complete the following statements by writing the correct word or words. 1. The mean of a discrete random variable is interpreted as the of a random variable over repeated trials of an experiment. 2. The variance and standard deviation of a discrete random variable measured or described the value of the assumed values of the random variable to the mean. 3. A small variance or standard deviation means that the assumed values or data points tend to he 4. A higher variance or standard deviation means that the assumed values or da points are to the mean. from the mean

Which of the following data sets has the smallest standard deviation?   a. 1, 2, 3, 4, 5   b. 100, 100, 100, 100, 100   c. 100, 101, 102, 103, 104   d. 2, 4, 6, 8, 10

What would be the correct way of doing this?

Compare the population variance to the mean of the sample variances. Choose the correct answer below.     A. The population variance is equal to the square root of the mean of the sample variances.   B. The population variance is equal to the mean of the sample variances.   C. The population variance is equal to the square of the mean of the sample variances.

Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?

Assume the mean and variance of 5 observations are 1 and 5, respectively. If 5, as one of these five observations, is removed, which of the followings gives the variance of the remaining observations? Select one: 2 1.25 0 None 0.75

Answer number 3 only pls.

3.3

This looks like another problem. Read carefully. Sergio is doing a long hike and is carefully calculating his pack weight. An energy bar has mean weight 1.71 ounces and standard deviation 0.037. The weights of the bars are independent. A juice box has mean weight 7.1 ounces and standard deviation 0.25. The weights of the juice boxes are independent.  If he takes 3 energy bars and 5 juice boxes, what will be the MEAN of the total weight in pounds from these items? Hint: If W is the weight in ounces, then W/16 is the weight in pounds.

If the deviations six of values from their mean are 0 , -6, 7 , -2 , 5 , -4 then the variance equal Select one: a. 21 b. 26 c. 4.2 d. 5.2