2. a) Let X and Y be independent identically distributed binomial random variables, X~ Bin(3, 0.4) and Y ~ Bin(3, 0.4). i) Compute the probability P(X = 0). ii) Compute the probability that the product XY equals 0, that is, compute P(XY = 0). b) The actual amount of jam (in g) that a filling machine puts into "150 g" jars may be looked upon as a random variable having a normal distribu- tion with σ = 6 and mean μ = 155. What proportion of jars, in the long-run, contain less than 150 g? N(0, 1), Give your answer in terms of the function, where for Z (z) = P(Z), and a give a sketch of the normal curve with a shaded area that corresponds to the required probability.

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2. a) Let X and Y be independent identically distributed binomial random
variables, X~ Bin(3, 0.4) and Y ~ Bin(3, 0.4).
i) Compute the probability P(X = 0).
ii) Compute the probability that the product XY equals 0, that is,
compute P(XY = 0).
b) The actual amount of jam (in g) that a filling machine puts into "150 g"
jars may be looked upon as a random variable having a normal distribu-
tion with σ = 6 and mean μ = 155.
What proportion of jars, in the long-run, contain less than 150 g?
N(0, 1),
Give your answer in terms of the function, where for Z
(z) = P(Z), and a give a sketch of the normal curve with a shaded
area that corresponds to the required probability.
Transcribed Image Text:2. a) Let X and Y be independent identically distributed binomial random variables, X~ Bin(3, 0.4) and Y ~ Bin(3, 0.4). i) Compute the probability P(X = 0). ii) Compute the probability that the product XY equals 0, that is, compute P(XY = 0). b) The actual amount of jam (in g) that a filling machine puts into "150 g" jars may be looked upon as a random variable having a normal distribu- tion with σ = 6 and mean μ = 155. What proportion of jars, in the long-run, contain less than 150 g? N(0, 1), Give your answer in terms of the function, where for Z (z) = P(Z), and a give a sketch of the normal curve with a shaded area that corresponds to the required probability.
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