The probability that Nins goes 0 days is 0.2, the probability that she goes 1 day is 0.50, and the probability that she goes 2 days is 0.30. You can write these data as a table:
where are numbers of days and are probabilities.
The expected value of the number of days per week on which Nina goes to the supermarket is
.
Answer: the expected value of the number of days per week on which Nina goes to the supermarket is 1.1.
To estimate, let's round 2/9 to 2/10. That simplifies to 1/5. 1/5 * 88 = 17.6
Answer:
Retangle
Step-by-step explanation:
So obv
We know, Distributive property tells:
a(b + c) = ab + bc
Here, GCD of 27 & 60 is 3, so take it as a common factor,
=3(9 + 20)
In short, Your Answer would be: 3(9 + 20)
Hope this helps!