WILL MARK BRAINLIEST TO FIRST CORRECT ANSWER
1 answer:
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(A)
we are given
(-1.15) x 3.2
Since, sign of 1.15 is negative
and sign of 3.2 is positive
so, we put negative sign in front
now, we can multiply them
and we get
.............Answer
(B)
Suppose, we are given product of two numbers 'a' and 'b'
so, we use this property
case-1: When both positive , then we put positive in front
case-2: When both negative , then we put positive in front
case-3: When first is negative and second is positive , then we put negative in front
case-4: When first is positive and second is negative , then we put negative in front
Answer: a) 0.16, b) 0.058, and c) 0.856.
Step-by-step explanation:
Since we have given that
Number of students = 500
Number of students smoke = 179
Number of students drink alcohol = 228
Number of students eat between meals = 119
Number of students eat between meals and drink alcohol = 59
Number of students eat between meals and smoke = 72
Number of students engage in all three = 30
a) Probability that the student smokes but does not drink alcohol is given by
b) eats between meals and drink alcohol but does not smoke.
c) neither smokes nor eats between meals.
Hence, a) 0.16, b) 0.058, and c) 0.856.