Researchers watched dolphin groups off the coast of Ireland in 1998 to determine what activities the dolphin groups partake in at certain times of the day. The numbers in table below represent the number of dolphin groups that were partaking in an activity at certain times of days. Activity | Morning | Noon | Afternoon | Evening | Total Travel | 6 | 6 | 14 | 13 | 39 Feed | 28 | 4 | 0 | 56 | 88 Social | 38 | 5 | 9 | 10 | 62 Total | 72 | 15 | 23 | 79 | 189 a) What is the probability that a dolphin group is partaking in travel? Round your final answer to 3 decimal places. b) What is the probability that a dolphin group is partaking in travel given that it is around at noon? Round your final answer to 3 decimal places. c) What is the probability that a dolphin group is around in the evening and is partaking in travel? Round your final answer to 3 decimal places. d) What is the probability that a dolphin group is around in the evening or is partaking in travel? Round your final answer to 3 decimal places.
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- Probability of travel = Number of dolphin groups traveling / Total number of dolphin groups - Probability of travel = 39 / 189 - Probability of travel = 0.206 Show moreā¦
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f) What is the probability that a dolphin group is around in the morning and is partaking in social activities? Round your final answer to 3 decimal places. g) What is the probability that a dolphin group is around in the morning or is partaking in social activities? Round your final answer to 3 decimal places. h) Are the events dolphin group around in the morning and dolphin group partaking in social activities mutually exclusive events? Why or why not? Select an answer i) Are the events dolphin group around in the afternoon and dolphin group partaking in social activities independent events? Why or why not? Select an answer
Dominador T.
What is the probability that the dolphin group is around in the morning and is partaking in social activities? Round your final answer to 3 decimal places. What is the probability that the dolphin group is around in the morning or is partaking in social activities? Round your final answer to 3 decimal places. Are the events "dolphin group around in the morning" and "dolphin group partaking in social activities" mutually exclusive events? Why or why not? Select an answer. Are the events "dolphin group around at noon" and "dolphin group partaking in travel" independent events? Why or why not? Select an answer.
Clarissa B.
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