savannahwonder
01.04.2020 •
Mathematics
Two experiments are defined below. An event is defined for each of the experiments. Experiment I: Ryan draws a ball from a bag that contains six balls, each of a different color. Only one of the balls is red. Event A: Ryan draws a red ball from the bag. Experiment II: Anna rolls a standard six-sided die. Event B: Anna rolls a five. Which statement about Event A and Event B is true?
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Ответ:
The probability of both events happening is 1/6 I.e their probabilities are the same
Step-by-step explanation:
In this question, we are asked to compare two different probabilities in two different scenarios and write a statement that is true about the two events.
For experiment A, we have 6 different balls, with a single red ball. Let’s say what is the probability of selecting a ref ball?
This can be written as;
P(red) = 1/6
In the second experiment, Anna rolls a die, what is the probability of the number 5 turning up. Since in a die, we only have the number 5 listed once, the probability of a number 5 turning up will be ;
P(5) = 1/6
Hence, the true statement about both events is that the probabilities of both event A and B occurring is equal to each other
Ответ:
The correct answer is: 21x + 14 = 98; x = 4.
Step-by-step explanation:
She needs to type the notes she recorded in her 98-page workbook. If whe types x hours at a rate of 21 pages per hour, and 14 pages are already done. Then the equation is:
21x + 14 = 98;
Now, the number of hours she will take to complete the task can be found by solving for 'x':
21x = 98 - 14
21x = 84
x = 4.
Therefore, the correct option is: 21x + 14 = 98; x = 4.