1/2*1/2*1/2*1/2+1/2*1/2*1/2*1/2+1/2*1/2*1/2*1/2+1/2*1/2*1/2*1/2+1/2*1/2*1/2*1/2+1/2*1/2*1/2*1/2+1/2*1/2*1/2*1/2+1/2*1/2*1/2*1/2= 1/2
Variance = sigma((value - mean)2) / (# values - 1) Mean = (0+1+1+2)/4 = 1 Variance = ((0-1)2+(1-1)2+(1-1)2+(2-1)2)/(4-1) Variance = (1+0+0+1)/3 Variance = 2/3 Variance ~ 0.667
With an honest coin, the probability of tossing 10 consecutive tails is(1/2)10 = (1/1024) = 0.0009766 = 0.09766 percent(rounded)regardless of what may have happened before.
(1/2)*(1/2)*(1/2)*(1/2)*(1/2)*(1/2) = 1/26 = 1/64
The probability of getting a combination of three heads and one tail regardless of theorder when you toss a coin four times is:P(THHH or HTHH or HHTH or HHHT) = P(THHH) + P(HTHH) + P(HHTH) + P(HHHT) =1/2(1/2)(1/2)(1/2) + 1/2(1/2)(1/2)(1/2) +1/2(1/2)(1/2)(1/2) + 1/2(1/2)(1/2)(1/2) = 4/16 = 1/4
The ratio is 1:1 000 000.
To first answer this question you must know how the PH scale works. Essentially the PH scale is a logarithmic scale. A logarithmic scale unlike a linear scale (you know the scales that go from 1, 2, 3, etc.) works using exponential increments. For the PH scale every time you go one number down the solution the item in question becomes ten times more acidic than the number above. Therefore to ultimately answer your question a solution with a PH of 1 is ten times more acidic than a solution that has a PH of 2.
A solution with a pH of 2 is ten times less acidic than a solution with a pH of 1, not half as acidic. pH is a logarithmic scale, so each unit change represents a tenfold difference in the concentration of hydrogen ions.
A pH of 2 is more acidic than a pH of 3. The pH scale is logarithmic, so each unit change represents a tenfold difference in acidity. This means that a pH of 2 is 10 times more acidic than a pH of 3.
A solution with a pH of 2 is less acidic than a solution with a pH of 1. The pH scale is logarithmic, so each unit change represents a tenfold difference in acidity. Therefore, a solution with a pH of 1 is 10 times more acidic than a solution with a pH of 2.
pH = 14 is basic pH = 7 is neutral pH - 1 and 2 are acidic; pH = 1 is more acidic than pH = 2 Therefore a solution at pH 1 has higher concentration of H+ than at pH 14
A pH of 1 is stronger (more acidic) than a pH of 4. Each whole number change in pH represents a tenfold change in the acidity or alkalinity of a solution. Therefore, a solution with a pH of 1 is ten times more acidic (has a higher hydrogen ion concentration) than a solution with a pH of 2, and 100 times more acidic than a solution with a pH of 4.
A solution with a pH of 2 is more acidic than a solution with a pH of 7. The pH scale is logarithmic, so each whole number change represents a 10-fold difference in acidity. Therefore, a pH of 2 is 10,000 times more acidic than a pH of 7.
The pH of 2 is more acidic than the pH of 6. pH is a logarithmic scale, so each whole number difference represents a tenfold difference in acidity.
A pH of 1 is most acidic. The acid in your stomach is about a 2 and it is strong enough to burn a hole in a rug.
A pH 2 solution is 10,000 times more acidic than a pH 6 solution. Each pH unit represents a tenfold change in acidity or alkalinity on the pH scale.
The most acidic pH among the options given is pH 2. pH values below 7 indicate acidity, with lower values being more acidic.