The length of a social media interaction is normally distributed with a mean of 3 minutes and a standard deviation of .4 minutes. What is the probability that an interaction lasts longer than 4 minutes?

What is the probability that a teenager eats hotdogs, given that he/she eats hamburger?

Question

The length of a social media interaction is normally distributed with a mean of 3 minutes and a standard deviation of .4 minutes. What is the probability that an interaction lasts longer than 4 minutes?



What is the probability that a teenager eats hotdogs, given that he/she eats hamburger?

anonymous · Answer

@Isaiah.Feynman

anonymous · Answer

Do you understand the principles behind using the normal distribution; in particular standardizing?

anonymous · Answer

For the second part:
$$P(A|B) = \frac{P(A ∩ B)}{P(B)}$$
Does this look familiar?

anonymous · Answer

@gypsy1274 @ehuman  @helpme1.2

anonymous · Answer

I dont understand how to use the formula Indivivet sent me

ybarrap · Answer

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