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QUESTION 5: PROBABILITY AND INFERENTIAL STATISTICS (Total 25 marks) 1 A box contains 25 red, 8 white, and 7 blue balls.
Posted: Wed May 11, 2022 6:34 am
by answerhappygod
- Question 5 Probability And Inferential Statistics Total 25 Marks 1 A Box Contains 25 Red 8 White And 7 Blue Balls 1 (64.72 KiB) Viewed 32 times
QUESTION 5: PROBABILITY AND INFERENTIAL STATISTICS (Total 25 marks) 1 A box contains 25 red, 8 white, and 7 blue balls. a. If one ball is chosen from the box, calculate the probability that the ball is red (2 marks) b. Two balls are chosen, without replacing the first. Calculate the probability that both balls are blue (3 marks) II. A company tests their employees' language skills. On average 7 out of 10 tested employees pass the test. One day three employees are tested. a Calculate the probability that all three pass the test. (2 marks) b. Write the probability distribution of the random variable as a table. The random variable is the number of employees who passed the test. (4 marks)