Which of the following statements is TRUE? a. One of the main advantages of cluster sampling over simple random sampling is its greater statistical efficiency for the same size sample. b. In cluster sampling, the parent population is broken into mutually exclusive and exhaustive sub-groups and a simple random sample is selected from each subgroup. c. In order to yield high statistical efficiency, each cluster in a cluster sample should include as many diverse universe values as possible. d. All of these statements are false. e. Cluster samples are most statistically efficient when the clusters are internally homogeneous.

y = x + 95

y = 42 + 95

y=137 mm hg

answer: idk

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

hi how are you doing today, if you need just ask me.

step-by-step explanation: