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2 years ago

14

Write,in its simplest form,the ration 3.5:800

1 answer:

aliina [53]2 years ago

4 0

Ok so I believe the simplest form of a ratio would mean no decimals, so we can simply multiply 3.5 and 800 by 2, which would give us 7:1600.

We can see that 7 and 1600 have no common factors, hence 7:1600 is the simplest form of the ratio 3.5:800.

Hope this helps!

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2 years ago

The probability that a professor arrives on time is 0.8 and the probability that a student arrives on time is 0.6. Assuming thes

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Step-by-step explanation:

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P(B) = Student aarive on time

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Part b)

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Part c)

Assume the events are not independent

Given Data

P $(\frac{{A}'}{{B}'})$ = 0.4

= $\frac{P({A}'\cap {B}')}{P({B}')}$ = 0.4

$P$ $({A}'\cap {B}')$ = 0.4 x P $({B}')$

= 0.4 x 0.4 = 0.16

$P({A}'\cap {B}')$ = 0.16

i)

The probability that at least one of them is on time

$P(A\cup B)$ = 1- $P({A}'\cap {B}')$

= 1 - 0.16 = 0.84

ii)The probability that they are both on time

P $(A\cap B)$ = 1 - $P({A}'\cup {B}')$ = 1 - $[P({A}')+P({B}') - P({A}'\cap {B}')]$

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2 years ago