This is about the daily return of the four stocks. What is the difference between the annual average mean and variance and the monthly average mean and variance? Please tell me the calculation formula.

0.034509981 0.010796326 -0.009440394 0.00675222 -0.019022313 0.019022313 0.004029555 -0.009427679 -0.010884461 0.010884461 -0.019126266 -0.005532518 0.001386002 -0.002773927 -0.00836825 0.015288693 -0.005532518 0.019231362 0.002717393 -0.006807378 -0.003566656 0.00938974 0.018487922 -0.011228504 -0.00938974 0.019786301 0.008992912 -0.006021524 0 0.001788865 0.002585094 -0.024794659 -0.008525876 -0.002585094 -0.005874964 0.017422777 0.009446184 0.018349139 0.017124414 0.002560821 0.038902799 0.013835154 0.00255428 0.002381899 0.012374768 -0.011976191 -0.015182073 -0.007662873 -0.005176888 -0.004842624 -0.011605589 -0.003466208 0.04043357 -0.003898554 0.000867679 -0.017241806 0.004330799 -0.004345943 -0.01032985 0.010318235 -0.022017622 0.01032985 0.012749897 -0.01164366 0.018794602 -0.006354565 0.01519922 -0.000776096 -0.011541098 -0.000887705 0.03733767 0.00343348 0.004430667 0.095514143 -0.006016305 -0.015145056 0.095248377 0 0 -0.105497869 Monthly mean Monthly variance Monthly standard deviation Annual mean Annual variance Annual standard deviation 0.034509981 0.010796326 -0.009440394 0.00675222 -0.019022313 0.019022313 0.004029555 -0.009427679 -0.010884461 0.010884461 -0.019126266 -0.005532518 0.001386002 -0.002773927 -0.00836825 0.015288693 -0.005532518 0.019231362 0.002717393 -0.006807378 -0.003566656 0.00938974 0.018487922 -0.011228504 -0.00938974 0.019786301 0.008992912 -0.006021524 0 0.001788865 0.002585094 -0.024794659 -0.008525876 -0.002585094 -0.005874964 0.017422777 0.009446184 0.018349139 0.017124414 0.002560821 0.038902799 0.013835154 0.00255428 0.002381899 0.012374768 -0.011976191 -0.015182073 -0.007662873 -0.005176888 -0.004842624 -0.011605589 -0.003466208 0.04043357 -0.003898554 0.000867679 -0.017241806 0.004330799 -0.004345943 -0.01032985 0.010318235 -0.022017622 0.01032985 0.012749897 -0.01164366 0.018794602 -0.006354565 0.01519922 -0.000776096 -0.011541098 -0.000887705 0.03733767 0.00343348 0.004430667 0.095514143 -0.006016305 -0.015145056 0.095248377 0 0 -0.105497869 Monthly mean Monthly variance Monthly standard deviation Annual mean Annual variance Annual standard deviation