Coin 1 and coin 2 are biased coins. the probability that tossing coin 1 results in head is 0.3. the probability that tossing coin 2 results in head is 0.9. coin 1 and coin 2 are tossed

(i) what is the probability that the result of coin 1 is tail and the result of coin 2 is head?
(ii) what is the probability that at least one of the results is head?
(iii) what is the probability that exactly one head appears?
(iv) what is the probability that the result of coin 1 is head given that head appears exactly once?

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Find the missing variable for a parallelogram: a = latex: 32in^2 32 i n 2 h = b = 6.3 in (1in=2.54cm)