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2 years ago

14

Anna has to read the lightning theif for class. Anna reads 30 chapters in 20 days. Emma reads BLANK chapters in 24 days. what is

the unknown rate?

1 answer:

olasank [31]2 years ago

3 0

32.5

Anna reads 30 in 20 days which means she read 15 chapters in 10 days and di ide 10 by 4 and it 2.5 and add that to 30 and you have your answer

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3 years ago

Suppose that in a casino game the payout is a random variable X . If X is positive, you gain money, if negative, you lose.

Vanyuwa [196]

Answer:

the conditional probability that X = 1 , X = 2 and X = 3 is 0.7333 (73.33%) , 0.25 (25%) and 0.0167 (1.67%) respectively

Step-by-step explanation:

a player wins money when i>0 then defining event W= gain money , then

P(W) = p(i>0) = p(1)+p(2)+p(3)

then the conditional probability can be calculated through the theorem of Bayes

P(X=1/W)= P(X=1 ∩ W)/P(W)

where

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then

P(X=1/W)= P(X=1 ∩ W)/P(W) = P(X=1) / P(W) = p(1) /[p(1)+p(2)+p(3)] = 11/40 /(11/40+3/32+1/160 ) = 0.7333 (73.33%)

similarly

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3 years ago