G is the event ‘Donna throws two fair dice and gets a total of 3’. H is the event ‘Donna throws two fair dice and gets one odd and one even number’. Are events G and H independent? Justify your ...
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Half of the class scored 90 in the test. One third of the class scored 87. One-sixth of the class scored 89. What is the average grade of the entire class?
What is the probability of drawing an ace and king in a deck of cards?
A random sampling which the sample in the study were tasked to recruit other members for the study. Snow ball sampling Stratified sampling Quota sampling
The probability of getting a multiple choice wrong is 0.8. A weekly quiz has 10 multiple choice questions. Assume independence between the question. What is the probability of getting 5 questions correct?
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Herald’s birth month is April. What is the probability that someone will guess his birthday on first try if the date is two even digits?
At a car park there are 100 vehicles, 60 of which are cars, 30 are vans and the remainder are lorries. If every vehicle is equally likely to leave, find the probability of: a) a van leaving first. b) a ...
What is the probability of a randomly selected CD player will have to be replaced in 8 years or less?