They belong to the number group of INTEGERS
Answer:
1111111 is the answer
Step-by-step explanation:
Add the three strips of cut wood together:
John will need to cut a total of 50.05cm of wood.
Subtract this total from the strip John has:
The leftover piece will be 21.95cm long.
We have been given that the ages of students in a school are normally distributed with a mean of 15 years and a standard deviation of 2 years.
We are asked to find the percentage of students that are between 14 and 18 years old.
First of all, we will find z-score corresponding to 14 and 18 using z-score formula.
Similarly, we will find the z-score corresponding to 18.
Now we will find the probability of getting a z-score between and that is .
Using normal distribution table, we will get:
Let us convert into percentage.
Therefore, approximately of the students are between 14 and 18 years old.