544 people will upgrade. To get this just make them into fractions
X/878 = 62/100
And then cross multiply
Answer:
b
Step-by-step explanation:
Answer:

Step-by-step explanation:
This is a question from conditional probability.
We are given:


And, we need to find P(A | B)
According to the formula of conditional probability:

Using the values, we get:

Thus, the probability of occurrence of event A given that event B has already occurred is 
Answer:
$570
Step-by-step explanation:
If 50% of the price is $285, all you have to do is mulipy 285 by 2. This would give you the answer of $570 as the orignal price of the washing machine.