Answer :
Final answer:
The standard deviation is the square root of the variance, which is 1.69 in this case. Taking the square root of 1.69 gives us an approximate value of 1.30. Therefore, the correct answer is a) 1.3.
Explanation:
The standard deviation is the square root of the variance. In this case, if the variance is 1.69, the standard deviation is the square root of 1.69. Taking the square root of 1.69 gives us approximately 1.30. Therefore, the answer is a) 1.3.
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