emathematics.net
Español
User: desconectar
 
Maths Exercices

Interpret tables


A Frequency Table is a table that lists items and uses tally marks o numbers to record and show the number of times they occur.

The frequency table shows the favorite colors selected by a class of preschool children

Favorite colors
Color Frequency
red 8
blue 3
pink 7
yellow 5
orange 2

What do you think is the most commonly selected color? 

According to the frequency table, the color red was selected most often.  This suggests that red is the favorite color among the preschool children


During health class, the students reported the number of times they ate fast food last month.

Eating fast food last month
Times eaten Frequency
0 4
1 1
2 19
3 2
4 17
5 10
6 6

How many students ate fast food at least 4 times?

Find the rows for 4, 5, and 6 times. Add the frequencies for these rows.

Add:

17 + 10 + 6 = 33

33 students ate fast food at least 4 times.

Using the given frequency distribution table, how many students scored 70 or higher?

Frequency Distribution of 26 Tests Scores
Class Interval Class Frequency
45-49 1
50-54 1
55-59 2
60-64 1
65-69 1
70-74 2
75-79 3
80-84 3
85-89 3
90-94 6
95-99 3

Find the rows for students scored 70 or higher. Add the frequencies for these rows.

Add:

2 + 3 + 3 + 3 + 6 + 3= 20

20 students scored 70 or higher.