The length of a social media interaction is normally distributed with a mean of 3 minutes and a standard deviation of 0.4 minutes.

what is the probability that an interaction lasts longer than 4 minutes?

1)0.0045254
2)0.043351
3)0.0095254
4)0.006209

  4) 0.0062097

Step-by-step explanation:

Given : The length of a social media interaction is normally distributed with a mean of minutes and a standard deviation of minutes.

Using the formula , , the z-value corresponding to x=4 will be :-

Using the standard normal distribution table for z-value , the  probability that an interaction lasts longer than 4 minutes will be :-

Hence, the probability that an interaction lasts longer than 4 minutes = 0.0062097

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

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