Suppose a reading between 30 and 40 is called very interesting from an archaeological point of view. Let us say you take readings at n

Suppose a reading between 30 and 40 is called €œvery interesting€ from an archaeological point of view. Let us say you take readings at n = 12 sites chosen at random. Let r be a binomial random variable that represents the number of €œvery interesting€ readings from these 12 sites.
(a) Let us call €œvery interesting€ a binomial success. Use Table A to find p, the probability of success on a single trial, where p = P(success) = P(30 ‰¤ x Magnetic Susceptibility Readings, centimeter-gram-second × 10ˆ’6

(b) What is the expected value m and standard deviation s for the random variable r?
(c) What is the probability that you will find at least one €œvery interesting€ reading in the 12 sites?
(d) What is the probability that you will find fewer than three €œvery interesting€ readings in the 12 sites?

Comment "cool" neutral" warm" "very interesting" "hot spot Magnetic Number of Estimated SusceptibilityReadingsProbability 30 10 x