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LenaWriter [7]
3 years ago
6

Given that events A and B are mutually exclusive, i.e., A?B = ? and P(A?B) =0, and that P(A)=0.7 and P(B)=0.2, find P(A or B).

Mathematics
1 answer:
TEA [102]3 years ago
7 0

Answer:

B

Step-by-step explanation:

i use d  relationship between them

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Marta_Voda [28]
<h3><u>The value of the number is equal to 16.</u></h3>

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Read 2 more answers
Please answer this correctly
MAVERICK [17]

Answer:

1:50 PM

Step-by-step explanation:

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Now, it took them 55 minutes to drive back to the school,

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7 0
3 years ago
The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of 0.5 min
Hitman42 [59]
Given:
μ = 2 min, population mean
σ = 0.5 min, population standard deviation

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From standard tables, obtain
P(x ≤ 3) = P(z ≤ 2) = 0.9772
Therefore
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Answer: 0.02275
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3 years ago
Dora buys one package each of 1lb 2 lb and 4 lb packages of ground beef to make hamburgers. How many 1/4 lb hamburgers can she m
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