Answer to Question #103811 in Statistics and Probability for Junaid

Question

a. What is the midpoint of the 2 up to 4 class? (Round the final answer to 1 decimal place.)


b. How many days were 2 up to 4 patients admitted?



c. Approximately how many days were studied?



d. What is the class interval?



e. What is this chart called?

Answer 1

The following chart shows the number of patients admitted daily to Memorial Hospital

through the emergency room.

a. What is the midpoint of the 2 up to 4 class?

Lower limit $L=2.$ Upper limit $U=4$

$$midpoint=M={L+U \over 2}={2+4 \over 2}=3$$

b. How many days were 2 up to 4 patients admitted?

Number of days for which 2 up to 4 patients were admitted is between 20 and 30.

c. Approximately how many days were studied?

30 days were studied.

d. What is the class interval?

$$Class\ interval=2-0=2$$

e. What is this chart called?

This chart is called frequency polygon.