Which statement is not true for a binomial distribution with n = 10 and p = 1/20 ?
1. The mean equals .50000
2. The probability that x equals 1 is .31512
3. The number of trials is equal to 10
4. The highest probability occurs when x equals .50000
5. The standard deviation is .68920
2006-10-01 16:01:39 · 3 answers · asked by RunsLikeElijah 3 in Science & Mathematics ➔ Mathematics
1. mean=np=.5, so that's not it.
2. p(X=1)=C(10,1)(1/20)(19/20)^9 = 0.31512, so that's not it.
3. number of trials = n = 10, so that's not it.
5. std dev=sqrt(np(1-p))=.68920, so that's not it either.
That leaves statement 4 as the one that's not true.
2006-10-02 07:00:04 · answer #1 · answered by James L 5 · 0⤊ 0⤋
Photosynthesis converts CO2 and H2O to glucose and oxygen. take a glance on the chemical equation for photosynthesis: 6CO2 + 6H2O ==> C6H12O6 + 6O2 all human beings understand that this technique is pushed by skill of utilising skill from hassle-free by skill of skill of a pigment in vegetation talked approximately as chlorophyll. O2 is a product, now no longer a reactant.
2016-12-12 18:48:59 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Probability is probability. You can compare probabilities BETWEEN but not WITHIN samples. Gotta be 4 - same for monomial distros, too.
2006-10-01 16:10:45 · answer #3 · answered by ? 6 · 0⤊ 0⤋