## Confucious 3 years ago Can someone please help me with this? I am getting absolutely nowhere. How easy is it to contact a person in Sacramento, California? If you don't know the telephone number, it could be difficult. It was reported that 66% of the telephone-owning households in Sacramento have unlisted numbers. For a random sample of 146 Sacramento households with telephones, what is the probability of the following. (Round μ to the nearest integer, σ to 4 decimal places.) (a) 100 or more have unlisted numbers (b) fewer than 100 have unlisted numbers (c) between 50 and 65(including 50 and 65) have listed #s

1. Confucious

use 4 decimal places

Is this a guassian distribution?

3. Confucious

yh, it's under that topic, although the question doesn't mention a type of distribution

@Hero It's a statistics question...well from what I can tell. I think that's why there are numbers. I am not good at statistics however but there is a statistics study group.

I believe Hero interpreted your question literally.

6. Hero

I know what kind of question it is.