The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of .5 minu tes. What is the probability that a conversation lasts longer than 3 minutes? 0.043351
0.063748
0.02275
0.095424
1 answer:
Let x be a random variable representing the length of a text messaging conversation, then P(x > 3) = 1 - P(x < 3) = 1 - P(z < (3 - 2)/0.5) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275
You might be interested in
Five kittens will give Denny $75. Raising them cost $50. So Denny will make a profit of $15.
Wow this is a good question whatttt
Answer:
To me is a best freind is someone who has my back no matter what.
Step-by-step explanation:
I say step 4 is incorrect.
Answer:
Infinate Solutions.
Step-by-step explanation: