Answer:
There are 178 more boys in Barlow school as compared to Willow school.
Step-by-step explanation:
We are given the following in the question:
Barlow school:
Total number of students = 873
Number of boys =
Willow school:
Total number of students = 630
Number of girls =
Number of boys =
Total number of students - total number of girls
Thus, Barlow school has greater number of boys than Willow school.
Difference between the number of boys =
Thus, there are 178 more boys in Barlow school as compared to Willow school.
Answer:
No
Step-by-step explanation:
2 divided by two and 1 half is equivalent to 2/2.5. Using.a calculator, you see that the answer is 0.8 , or 2/5.
Answer:
Step-by-step explanation:
Given
--- rate of hard disk drives failure
--- number of hard disk drives
<em>See comment for complete question</em>
Required
First, calculate the probability that the none of the 4 selected is working;
Using the complement rule, the probability that at least 1 is working is:
This gives: