03-09-2017
Mathematics

contestada

X and Y are two mutually exclusive events. P(X)= 0.55 and P(X or Y)=0.7. Work out P(not Y) (2 marks)

Respuesta :

mreijepatmat mreijepatmat

03-09-2017

P(x) = 0.55

P(x ∪ y) = 0.70 →→ P(x) +P(y) = 0.70 →→ 0.55 + P(y) =0.70→→P(y) = 0.15
If P(NOT y) = 1- 0.15 = 0.85

Answer Link

Otras preguntas

Which of the following sources is the least likely to provide a historian with credible information about a historical figure? A.A biography of a presidential c

×/2 +5=1/3 (x+14) Please show work

How does a postulate becomes a theorem.?

What is a practical use of classical conditioning? 1.) People on diets can learn to recognize when they have already paired their hunger signals with the sight

what is the description of biome

I don't know how to do negative numbers I don't know how to add subtract multiply and divide them

British Colombia in Canada why woud you move there

the erie canal helped in which of the following ways? it connected the great lakes. it connected the mississippi river to the gulf of mexico. it made transporta

Write the fact family for the number 32,8 and 4

garth estimated the height of the door ti his classroom in meters. what is a reasonable estimate?