It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose you randomly survey 11 California residents. We are interested in the number who have adequate earthquake supplies. What is the probability that at least 8 have adequate earthquake supplies?
Is it more likely that none or that all of the residents surveyed will have adequate earthquake
supplies? Why?

It's more likely that  all of the residents surveyed will have adequate earthquake supplies since it has a probability of 98.02% which is very close to 100%.

Step-by-step explanation:

-This is a binomial probability problem with the function:

-Given p=0.3, n=11, the is calculated as:

Hence, the probability that at least 8 have adequate supplies 0.0043

#The probability that non has adequate supplies is calculated as;

#The probability that all have adequate supplies is calculated as:

Hence, it's more likely that  all of the residents surveyed will have adequate earthquake supplies since and that this probability is 0.9802 or 98.02% a figure close to 1

answer: i believe its b. if you sound out the sentences that sounds wrong.

(a) the volume of the cone is 20/3 in3

hence, option a is correct.