When finding single or multiple probabilities using the binomial distribution on the calculator, which function do I use respectively?
· In a binomial probability question that only asks you for one single probability (e.g. P=48), use binompdf· In a binomial probability question that asks you for multiple probabilities (e.g. P≥48), use binomcdf· In a binomial probability question that asks you for example (P≥48), do 1 – (P<48)· To show your working out on P2, write (n = trials, p = probability)
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Related Maths IB answers
All answers ▸In a lottery, 6 numbered balls are drawn from a pool of 59. Calculate the probability of scoring a jackpot. There used to be 49 balls in the pool. Calculate by how much the addition of 10 balls has decreased the probability of scoring a jackpot
IB exam question: Let p(x)=2x^5+x^4–26x^3–13x^2+72x+36, x∈R. For the polynomial equation p (x) = 0 , state (i) the sum of the roots; (ii) the product of the roots.
a) Let u=(2,3,-1) and w=(3,-1,p). Given that u is perpendicular to w, find the value of p. b)Let v=(1,q,5). Given that modulus v = sqrt(42), find the possible values of q.
Consider the functions f and g where f(x)=3x-5 and g(x)=x-2. (a) Find the inverse function for f. (b) Given that the inverse of g is x+2, find (g-1 o f)(x).