Question

QUESTION 7 Consider the discrete probability distribution to the right when answering the following question. Find the probability that x exceed 4 9 7 4 3 0.36 0.26 0.20 Plx) A 0,62 B.0.49 C.0.82 D.0.51 E. 0.31 F 0.18 QUESTION 8 Provide a written description of the complement of the given event: Of ten adults, at least one of them has high blood pressuret A At most one of the adults has high blood pressure. B. None of the aduits has high blood pressure C. All of the adults have high blood pressure D. Nine of the adults have high blood pressure

Answer 1

Answer

(7) Using the given probability distribution table

we can get P(x = 3) = 0.20

we can write

P(x exceeds 4) = P(x>4) = P(x = 7) + P(x =9)

= 0.26+0.36

= 0.62

option A

(8) Given statement is

"of ten adults, at least one of them has high blood pressure"'

When writing the complement for "at least" statement, we use "none of the" to complete the statement

therefore, complement of given statement will be given as

"none of the adults has high blood pressure "

option B