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What is the probability of getting 2 tails if a coin is tossed 4 times?
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
What is probability of tossing 10 more tails in a row?
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.
What is the variance of these four scores 0 1 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
What is the probability of heads heads tails tails heads heads on six flips of a coin?
(1/2)*(1/2)*(1/2)*(1/2)*(1/2)*(1/2) = 1/26 = 1/64
A fair coin is tossed four times. What is the probability of getting some combination of three heads and one tail regardless of the order?
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
How many times more acidic is a solution of pH 1 than a solution having pH 2?
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.
If stomach juice of pH 1 is 10 time more acidic than lemon juice of pH 2 and 100 times more acidic than vinegar of pH 3 how much more acidic is it compared to a solution of pH 6 If n is the pH value o?
The ratio is 1:1 000 000.
Is a solution with a pH of 2 twice or half as acidic as a pH of 1?
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.
What is more acidic a pH of 2 or 3?
pH 2. The lower the number is the more acidic it is. pH 7 is neutral, pH 14 is least acidic. 5.4 is considered acid rain.
How does a solution with a pH of 2 compare to a solution with a pH of 1?
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.
What pH values indicates a solution with the highest concentration of hydrogen ions pH equals 1 or pH equals 2 or Ph equals 7or pH equals 14?
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
What pH is stronger 4 or 1?
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.
How does a solution with a pH of 2 compare to a solution with a pH of 7?
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.
Which pH level has the most acidic?
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.
Which is more acid the pH of 6 or the pH of 2?
A pH of 2 is much more acidic than a pH of 6
How many times is a ph2 more acidic than a ph6?
More acidic: [H+]1/[H+]2 = 10-(pH1-pH2) = 10-(2-6) = 10+4 = 10.000 times more H+ ions.
Which is the most acidic pH 2 pH 5 pH 7 or pH 11?
Most acidic is substance of pH of 2, then of pH of 5 and the substance of pH 7 is neutral and the substance of pH 11 is basic
