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Verizon [17]
2 years ago
5

The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of 0.5 min

utes. What is the probability that a conversation lasts longer than 3 minutes?
A. 0.043351
B. 0.063748
C. 0.02275
D. 0.095424
Mathematics
1 answer:
Nezavi [6.7K]2 years ago
5 0
A.
I think.
tell me if its right pls
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How many words of five letters can be created that start with the letter T, contain 2 other consonats and end with 2 vowels? Not
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If we're only counting 5 vowels (A, E, I, O, U) and 20 consonants (everything else, minus T), then there are

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ways of picking the consonants.

We want the word to start with T, and we'll allow any arrangement of the other 4 letters, so that the total number of words is

4!\dbinom52\dbinom{20}2=\boxed{45,600}

Keep in mind that this means words like TRIES and TIRES are treated as different.

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Help please Rewrite as an improper fraction.
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The answer is the second option, 37/11.

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4 0
3 years ago
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The U.S. Energy Department states that 60% of all U.S. households have ceiling fans. In addition, 29% of all U.S. households hav
hram777 [196]

Answer:

Very sorry if this is no help

Step-by-step explanation:

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2 years ago
Is the solution greater than, less than, or equal to 29?<br><br> 4(5 + 6) - 15
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Answer:

Step-by-step explanation:

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PLSSS HELP!!! ASAAPP
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Answer:

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Step-by-step explanation:

pemdas!

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