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O: Listed below are the prices paid for one night at different Las Vegas hotel rooms: 212 77121 104 153 264 195 244 How many of these are within 1 standard deviation of the mean? OA. 6 O B. 4 O D. 5 2
The table shows the chest sizes and weights of 7 anesthetized bears Chest 26 Weight 80 Determine the coefficent of correlation to 3 decimal places. O A. 0.980 O B. correct answer is not given 45 344 54 416 49 348 1 35 166 41 220 41 262 C. 0.961
math   Statistics-And-Probability   
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Answer #1

1) From the given data

Descriptive Statistics: Values Sum of Total Variable Count Mean StDev Variance Sum Squares 8 171.3 68.0 4626.2 1370.0 266996.0

The limits of 1 SD of the mean is (171.3-68, 171.3+68) = (103.8,239.8)
The number of values are within 1 SD of the mean is 6
Correct answer: Option (A) 6

2) Correct answer: option (A) 0.980

since

You entered the following data: X126 45 54 49 35 41 41 Y80 344 416 348 166 220 262 The corelation coefficient is T 0.9803 Exp

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