#### benjamin8161

##### New member

- Joined
- Mar 13, 2017

- Messages
- 6

A charter boat company of St. Lucia takes tourists on a daily dolphin/whale watch cruise. Their brochure claims an 85% chance of sighting a whale or a dolphin. Suppose there is a 70% chance of seeing dolphins and a 12% chance of seeing both dolphins and whales. Make a Venn diagram. Then answer these questions.

(a) What is the probability of seeing a whale on the cruise?

(b) What is the probability of seeing a whale but not a dolphin?

(c) Are "seeing a whale" and "seeing a dolphin" independent events?

Yes, the events are independent.

No, the events are not independent

EDIT:

I am a sophmore in college trying to understand stats as math has never come easy to me, I have made 2 attempts at this problem with both of them coming back to me with wrong answers

(a) What is the probability of seeing a whale on the cruise?

(b) What is the probability of seeing a whale but not a dolphin?

(c) Are "seeing a whale" and "seeing a dolphin" independent events?

Yes, the events are independent.

No, the events are not independent

EDIT:

I am a sophmore in college trying to understand stats as math has never come easy to me, I have made 2 attempts at this problem with both of them coming back to me with wrong answers

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