.chapter-header {
background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
color: white;
padding: 30px 20px;
border-radius: 12px;
text-align: center;
margin-bottom: 30px;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
.chapter-header h1 {
margin: 0;
font-size: 2.2rem;
text-transform: uppercase;
letter-spacing: 1px;
}
.chapter-header h2 {
margin: 10px 0 0;
font-weight: 300;
font-size: 1.2rem;
opacity: 0.9;
}
.section-box {
background: #f8f9fa;
border-left: 5px solid #2a5298;
padding: 20px;
margin-bottom: 25px;
border-radius: 0 8px 8px 0;
}
.objectives-box {
background: #eef7ff;
border: 1px solid #bce0fd;
padding: 20px;
border-radius: 12px;
margin-bottom: 25px;
}
.objectives-box h3 {
color: #0056b3;
margin-top: 0;
display: flex;
align-items: center;
}
.recap-section {
background: #fff;
border: 1px solid #eee;
padding: 20px;
border-radius: 12px;
box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.recap-title {
color: #008e70;
font-size: 1.5rem;
font-weight: bold;
border-bottom: 2px solid #008e70;
display: inline-block;
margin-bottom: 20px;
}
.img-container {
text-align: center;
margin: 20px 0;
}
.img-container img {
max-width: 100%;
height: auto;
border-radius: 8px;
box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.question-list {
list-style: none;
padding: 0;
}
.question-item {
background: #ffffff;
border: 1px solid #e1e4e8;
padding: 15px;
margin-bottom: 15px;
border-radius: 8px;
transition: transform 0.2s;
}
.question-item:hover {
transform: translateX(5px);
border-color: #2a5298;
}
.correct-answer {
display: inline-block;
margin-top: 8px;
background-color: #e6fffa;
color: #2c7a7b;
padding: 4px 12px;
border-radius: 4px;
font-weight: bold;
border-left: 3px solid #38b2ac;
}
.highlight-purple {
color: #7030a0;
font-weight: bold;
}
.intro-section {
margin-top: 40px;
padding: 20px;
background: #fff9f0;
border-radius: 12px;
border: 1px solid #ffe8cc;
}
.intro-title {
color: #c04000;
font-weight: bold;
font-size: 1.3rem;
}
@media (max-width: 600px) {
.chapter-header h1 { font-size: 1.6rem; }
.omtex-content-wrapper { padding: 5px; }
}
Learning Objectives
- • To understand the necessity to collect the data.
- • To organise collected data using tally marks.
- • To understand the need for scaling in pictographs.
- • To draw pictographs and interpret them.
- • To draw bar graphs and interpret them.
Recap
Count the objects in the following figure and complete the table that follows:
From the given Fig 5.1 and the table, answer the following questions.
(i) The total number of objects in the above picture is
24.
(ii) The difference between the number of squares and the number of bats is
\( 6 - 4 = 2 \).
(iii) The ratio of the number of balls to the number of bats is
\( 8 : 6 \).
(iv) What are the objects equal in number?
Answer: Bat and Square
(v) How many more balls are there than the number of bats?
Answer: 2 balls more than bats
Introduction
MATHEMATICS ALIVE – STATISTICS IN REAL LIFE
