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Vikki [24]
3 years ago
6

Suppose that the probability that your mail is delivered before 2 pm. 90. What is the probability that your mail will be deliver

ed before 2 pm for two consecutive days? Give your answer as a decimal.
Thank you!
Mathematics
2 answers:
Nataliya [291]3 years ago
3 0

Answer:

Step-by-step explanation:

1. The probability that your mail is delivered before 2 pm is 0.9, so the probability that the mail is delivered at 2 pm or after 2 pm (so not before 2 pm) is 1-0.9=0.1.

Remark: 0.9=9/10=90/100=90%, and 0.1 is 10%

2. Probability of the mail being delivered before 2 pm for 2 consecutive days is  

3. take a look at the picture attached, the tree diagram is another method we could use.

Temka [501]3 years ago
3 0

Answer:

.81

Step-by-step explanation:

I have acellus too and this is the correct answer. I can't explain it very well. Sorry!

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