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8090 [49]
3 years ago
8

8. Find the value of x in the diagram below. (2x+25) (3x)​

Mathematics
1 answer:
Katarina [22]3 years ago
8 0

(2x+25) (3x) = 0

6x+75x = 0

81x = 0

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We are given that a sample of 5 strings of thread is randomly selected and the following thicknesses are measured in millimeters ;

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      1.13            1.13 - 1.188 = -0.058                                 3.364 * 10^{-3}

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                                                                    \sum (X-Xbar)^{2} <u>= 0.01568   </u>

Firstly, Mean of above data, Xbar = \frac{\sum X}{n} = \frac{1.15+1.24+1.15+1.27+1.13}{5} = 1.188

Point estimate of Population Variance = Sample variance

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