Find the standard deviation of the following data. Round your answer to one decimal place. x 8 9 10 11 12 13 P(X=x)P(X=x) 0.1 0.2 0.1 0.2 0.2 0.2

Find Standard Deviation for the data given. (choose closest answer). Round your answer to two digits after decimal. xf 13 34 45 51 65 74 93 O none of these answers 2.35 O 5.75 O 2.40

The discharge of suspended solids from a phosphate mine is normally distributed, with a mean daily discharge of 27 milligrams per liter (mg/l) and a standard deviation of 14 mg/l. On what proportion of days will the daily discharge exceed 60 mg/l? (Round your answer to four decimal places.) X USE SALT

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Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. 3/2 Click to view page 1 of the table, Click to view page 2 of the table. pr 0.55 =/2 pr /2 or The indicated IQ score, x, is (Round to one decimal place as needed.) /2 /2 or 2 or on 2 on ? Enter your answer in the answer box.

Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. Click to view page 2of tihe fable 0.9 The indicated IQ score, x, is (Round to one decimal place as needed.)

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Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard deviation for x is 2.03, and the standard deviation for y is 5.2. The regression equation is reported as - 5.5 + 1.84x What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer as a decimal between 0 and 1.)

Find the indicated IQ score. The graph to the right depicts IQ scores standard deviation of 15. of adults, and those scores are normally distributed with a mean of 100 and a Click to view page 1 of the table. Click to view page 2 of the table. 0.7 The indicated IQ score, (Round to one decimal place as needed.) is X, nter ucces ? ia Lib Enter your answer in the answer box and then click Check Answer Check Answer Clear All 4:17 PM All parts showing 12/2/201 Optio N pe here to search insert 61 44 f8 |+ 7 16 4 7