Complete the chart to find the mean, variance and standard deviation. remember to use commas and round numbers to the nearest tenth. x _ x _ x - x _ (x - x)2 1. 45 = -357.5 = the mean is 2. 340 = -62.5 = the median is 3. 400 = -2.5 = the variance is 4. 825 = 422.5 = the standard deviation is σ x = _ x = _ σ (x - x)2 = 310,225.2 n =

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

i dont have an answer

step-by-step explanation: