Hello everyone Can you please help me with these QUESTION 1

Hello everyone. Can you please help me with these?

QUESTION 1

On each of three consecutive days the National Weather Service announces that there is a 50-50 chance of rain. Assuming that the National Weather Service is correct, what is the probability that it rains on at most one of the three days? (Hint: Represent the outcome that it rains on day 1 and doesn’t rain on days 2 and 3 as RNN.)

50%

33%

37.5%.

None of the above.

QUESTION 3

Let A = {3, 4, 5, 6, 7} and define a relation R on A as follows: for all x, y A, x R y 2 | (x y).

Is 4 R 6?

True= yes, False = no.

True

False

QUESTION 10

{5} {{1}, {3}, {5}}

True or False

True

False

QUESTION 8

The contrapositive of “If Ed is Sue’s father, then Liu is Sue’s cousin.” is \"If Liu is not Sue’s cousin, then Ed is not Sue’s father.\"

True/False

True

False

Solution

The contrapositive of “If Ed is Sue’s father, then Liu is Sue’s cousin.” is \"If Liu is not Sue’s cousin, then Ed is not Sue’s father.\" False.

{5} {{1}, {3}, {5}} TRUE.

1.The required probbility is 50%.