Step 4: Determine citical Value Twot aided test \( \bar{w} \) a \( =0.05 \) and \( n-1=15 \) (df Use + distrubution table \( = \pm 2.131 \)

The annual rainfall in a certain region is approximately normally distributed with mean 41.3 inches and standard deviation 5.6 inches. Round answers to the nearest tenth of a percent. W) What percentage of years will have an annual rainfall of less than 43 inches? 62.6 What percentage of years will have an annual rainfall of more than 38 inches? w) What percentage of years will have an annual rainfall of between 37 inches and 42 inches? Suestion Help: Read Rideo Message instructor Submit Question

A set of exam scores is normally distributed with a mean \( =74 \) and standard deviation \( =8 \). \( 95 \% \) of the data values lie between 58 \( \% \) of the exam scores are between 66 and 74 . \( \% \) of the exam scores are between 74 and 90 . \( \% \) of the exam scores are between 82 and 90 . \% oxam scores are greater than or equal to 66 .

A variable \( x \) is normally distributed with mean 21 and standard deviation 5. a) Determine the \( z \)-score for \( x=27 \). b) Determine the \( z \)-score for \( x=15 \). c) What value of \( x \) has a \( z \)-score of 1.8 ? \( x=x= \) d) What value of \( x \) has a \( z \)-score of -0.6 ? e) What value of \( x \) has a \( z \)-score of 0 ? \( x= \)

Which of the following statements are TRUE about the Normal Distribution? Check all that apply. The graph of the Normal Distribution is bell-shaped, with tapering tails that never actually touch the horizontal axis. \( 50 \% \) of the data values lie at or above the mean. about \( 95 \% \) of all data values lie within 1 standard deviation of the mean. The mean, median and mode are all equal and occur at the center of the distribution. Data values are spread evenly around the mean. Data values farther from the mean are less common than data values closer to the mean.

1.3.1 Bereken die gemiddelde aantal huishoudings in Suid-Afrika wat gedurende 2022 nie toegang tot die internet gehad het nie.