Answer:
And the z score for 0.4 is
And then the probability desired would be:
Step-by-step explanation:
The normal approximation for this case is satisfied since the value for p is near to 0.5 and the sample size is large enough, and we have:
For this case we can assume that the population proportion have the following distribution
Where:
And we want to find this probability:
And we can use the z score formula given by:
And the z score for 0.4 is
And then the probability desired would be:
Combining three equal groups means that we will mainly depend on multiplying the quantity by 3 to get the total
<u><em>Examples are shown below:</em></u>
1- Mrs Nadia teaches three classes. Each class has 25 student. How many students does Mrs Nadia teach in total?
<u>In this problem</u> we will be combining three equal groups of students where each group has 25 students, therefore:
Total number of students = 3 * 25 = 75 students
2- John has three bags of candies. Each bag contains 10 pieces of candies. How many candies does John has?
<u>In this problem</u> we will be combining three equal groups of candies where each group has 10 pieces, therefore:
Total number of candies = 3 * 10 = 30 candies
Hope this helps :)
Answer:
It is rotated 180 degrees then reflected on the y-axis
Step-by-step explanation:
Answer:
The answer is the option A
Step-by-step explanation:
Let
x-------> the width of the border
we know that
The total area of the window plus the border is equal to
Using a graphing tool -----> to resolve the quadratic equation
see the attached figure
The solution is
Answer:
320 calories
Step-by-step explanation:
if a fourth of the chocolate bar is 10 more calories than 70 then it is 80 calories per fourth, 80 times 4 will give you 320. that means the candy bar contains 320 calories in total.