1.in a large bag of marbles, 25% of them are red. a child chooses 4 marbles from this bag. if the child chooses the marbles at random, what is the chance that the child gets exactly three red marbles? . a) 0.047. b) 0.141 . c) 0.211 . d) 0.063. 2.a pet supplier has a stock of parakeets of which 10% are blue parakeets. a pet store orders 3 parakeets from this supplier. if the supplier selects the parakeets at random, what is the chance that the pet store gets exactly one blue parakeet? . a) 0.081 . b) 0.243 . c) 0.027 . d) 0.003 . in a large bag of marbles, 25% of them are red. a child chooses 4 marbles

A: 0.047

B: 0.243

Step-by-step explanation:

A:

= 0.0468 ≈ 0.047

B:

The probability of a blue parakeet to be chosen is 0.10 and the probability of a non blue parakeet is 0.90.

We can conclude from the given situation, the following combinations:

No blue parakeet:  

If 1 blue parakeet is selected:

When there are 2 blue parakeets:

When 3 blue parakeets:

So,the chance that the pet store gets exactly one blue parakeet is given by:

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3