Question

It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose you randomly survey 13 California residents. We are interested in the number who have adequate earthquake supplies.

1. Give the distribution of X. (Enter exact numbers as integers, fractions, or decimals.)

2. What is the probability that at least eight have adequate earthquake supplies? (Round your answer to four decimal places.)

3. Is it more likely that none or that all of the residents surveyed will have adequate earthquake supplies? Why? (Round your answers to four decimal places.)

The probability that none of the residents have adequate earthquake supplies is  , while the probability that all of the residents have adequate earthquake supplies is  .Therefore it is more likely that  ---Select--- none all of the residents will have adequate earthquake supplies.

4. How many residents do you expect will have adequate earthquake supplies? (Round your answer to the nearest whole number.)

Answer 1