1) In a study of hypertension and optical treatment conducted by the National Heart Institute of Malaysia, 10,000 patients had a mean systolic blood pressure, u= 161mm Hg and standard deviation, 0=25mm Hg. Assume the systolic blood pressure is normally distributed.

a) What is the probability of patients had with a systolic blood pressure more than 180mm Hg?

b) How many patients will have a systolic BP of more than 180mm Hg?

c) What is the probability of patients with a systolic BP between 145 and 160mm Hg?

2 a) The probability of a student passing the lab test is 0.35. Two students are randomly selected to observe whether they can pass the test or not

i) Draw a free diagram to illustrate the above event

ii) Calculate the probability that at least one person passes the test.

b) According to a survey, 60% of all students at a large university suffer from math anxiety. Two students are randomly selected from this university. Let x denote the number of students in this sample who suffer from math anxiety. Develop the probability distribution of x.

PLS GIVE ME ANSWER FOR QUESTIONS 1 a,b,c & 2a (i) , (ii) & 2b

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