Test for Data Handling

Data handling is a crucial topic in mathematics as it enables students to analyze and interpret data effectively. Here's a test that can help students assess their knowledge of data handling:

I. Multiple Choice Questions

1. How many types of graphs are commonly used to represent data?
a. 1
b. 2
c. 3
d. 4

2. What is the purpose of a bar graph?
a. To compare data
b. To show trends over time
c. To show percentages
d. To show parts of a whole

3. What is the range of the following data set: 5, 7, 9, 11, 13
a. 5
b. 8
c. 9
d. 13

4. What is the mode of the following data set: 8, 9, 10, 10, 11
a. 8
b. 9
c. 10
d. 11

5. Which measure of central tendency is affected by extreme values?
a. Mean
b. Median
c. Mode
d. Range

II. Short Answer Questions

1. Create a line graph to represent the following data set:
Year Production (in tons)
2015 50
2016 70
2017 80
2018 90

2. Calculate the mean, median, and mode of the following data set:
10, 12, 14, 16, 18, 20

III. Word Problems

1. A class of 25 students took a math test. The following scores were recorded:
50, 60, 70, 80, 90, 90, 90, 90, 90, 90, 90, 90, 90, 95, 95, 95, 95, 95, 95, 100, 100, 100, 100, 100, 100
What is the mean, median, and mode of the test scores?

2. The following data shows the number of books sold by a bookshop in the last five months:
Month Number of books sold
January 100
February 120
March 140
April 160
May 180
Create a bar graph to represent this data.

Multiplication and Division of Integers

Multiplication and division of integers are fundamental operations that students in Class 7 Math need to understand. Here's a brief explanation of these concepts:

Integers

Integers are whole numbers that can be positive, negative, or zero. Examples of integers include -3, -2, -1, 0, 1, 2, and 3.

Multiplication of Integers

When multiplying integers, the following rules apply:
- If the signs of the integers are the same, the product is positive.
- If the signs of the integers are different, the product is negative.
Examples:
- (3)(4) = 12 (both numbers are positive)
- (-3)(-4) = 12 (both numbers are negative)
- (-3)(4) = -12 (numbers have different signs)

Division of Integers

When dividing integers, the following rules apply:
- If the signs of the integers are the same,

There's a test but u have to enroll edu rev infinity....