An experiment involves selecting a numbered chip, some black and some white, from a bag of chips. the probability of selecting a black chip with an odd number is 415 . the probability of selecting a black chip is 915
what is the probability of selecting a chip with an odd number given that the chip is black?

enter your answer, as a simplified fraction, in the boxes.
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The probability of selecting an odd number given that the chip is black is 0.454.

Step-by-step explanation:

First of all, the value of probability is always less than 1, so the following value of probabilities need to be corrected and are:

Probability of selecting a black chip with an odd number(A)=0.415

Probability of selecting a black chip(B)= 0.915

Probability of A given B is denoted by=P(A | B)

P(A|B) =P(A∩B)/P(B)

P(B)=0.915

P(A∩B)=0.415

P(A|B)=

P(A|B)=0.454

The probability of selecting an odd number given that the chip is black is 0.454.

The ratio of blue marbles to red marbles is 35:15. To test his hypothesis in the best way, he should make sure that the total number of marbles he draws is 100. In other words, both sides of the ratio added together should equal 100. Right now, both sides equal 50 (35 + 15 = 50). To get to 100, double both sides of the ratio. Now, the ratio is 70:30. Based on the 50 marbles Sam drew, there are 70 blue marbles and 30 red marbles, meaning Sam's hypothesis is incorrect, and there are more blue marbles than red.