Applied Math

The below table is related to the expenditures of a college during the 6 months:

Draw a bar graph for that.

What is the difference between the exclusive data interval and the inclusive one?

How can we collect data for a case study in statistics?

A bar graph is suitable for which kind of data?

    Ala records the ages of the 32 students of her classmates in the math class.

18, 18, 21, 19, 23, 18, 19, 20, 21, 19, 19, 20, 18, 19, 20, 18

19, 19, 20, 18, 19, 20, 18, 18, 21, 19, 23, 18, 19, 20, 21, 19

(a)   Draw a frequency table to organize the above data.

(b)   Which age is the most repeated one in this class?

    Data are obtained on the topics given below. State whether they are discrete or continuous data.

(a)   The number of cities in the Middle East where rain falls in 6 months of the year.

(b)   The temperature of all classes on the first floor of Muscat University.

(c)    The time that each student spends in traffic to get to the university.

(d)   The amount of money spent by each of several families on groceries.

Draw a histogram to represent the data shown for the record high temperatures for each of the 50 states.

   Study this pie chart and answer the questions that follow.

     The data was collected from a sample of 200 students.

a.      What data does this graph show?

b.      How many different categories of data are there?

c.      Which was the most popular sport?

d.      What fraction of students play cricket?

e.      How many students play netball?

f.        How many students play baseball

  Find the mean, median and mode of the following data sets:

a.      37.90, 24.70, 74.40, 19.92, 74.60, 93.68

b.      202, 321, 201, 200, 102, 111, 123, 101, 110

  Determine the sample standard deviation from the mean of the set of numbers:

{7, 5, 7, 11, 9, 4}, correct to 4 significant figures.