Maths 1 Mark Question

Range = highest score - lowest score = 100 - 37 = 63

A frequency distribution is an arrangement of instances in which a variable takes each of its possible values. A frequency distribution depicts a summarized grouping of data divided into mutually exclusive classes and the number of occurrences in those classes.

We can count the number of babies born on that particular day by counting the number of observations.
Therefore, number of babies born on that day = 15.

Number of times an observation has occurred in a given data.

The observation 51, 54 and 57 have not appeared in the data range of 50-60.

Babies which weigh 2.9, 2.9, 3.0 and 3.1kg are the ones to weigh more than 2.8kg.

Observation is the active acquisition of information from a primary source.

Number of babies weighing 2.8kg = 2

Range = Highest weight - lowest weight
= 3.1kg - 2.1kg = 1.0kg

The above data shows 37 as the lowest score

Arranging the weights of the newborn babies in the descending order, we get,
3.1, 3.0, 2.9, 2.9, 2.8, 2.8, 2.7, 2.6, 2.5, 2.5, 2.4, 2.3, 2.2, 2.1,

In a descending order, the first number is always the highest.
Therefore, highest weight = 3.1kg.

A collection of facts such as values measurements are called data.

From the given data we can see that the highest score is 100.

Babies which weigh 2.1, 2.2, 2.3 and 2.4kg are the ones to weigh less than 2.5kg.

In an descending order, the last number is always the lowest
Therefore, lowest weight = 2.1kg

Students who have scored 37, 39, 44, 48 and 48 are the ones to score less than 50
Therefore number of students who got less than 50 = 5