Question 11 Mark
The final marks in mathematics of $30$ students are as follows:
$53, 61, 48, 60, 78, 68, 55, 100, 67, 90$
$75, 88, 77, 37, 84, 58, 60, 48, 62, 56$
$44, 58, 52, 64, 98, 59, 70, 39, 50, 60$
Which observations between $50$ and $60$ have not actually appealed?
Answer$51, 54$ and $57$ are not there between $50$ and $60$.
View full question & answer→Question 21 Mark
Define the following terms: Observations.
AnswerObservation: is the activity of paying close attention to someone or something in order to get information in numerical form.
View full question & answer→Question 31 Mark
The weights of new born babies (in kg) in a hospital on a particular day are as follows: $2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4$ How many babies were born on that day?
AnswerA total of $15$ babies were born on that day.
View full question & answer→Question 41 Mark
The weights of new born babies (in kg) in a hospital on a particular day are as follows: $2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4$ How many babies weigh more than $2.8$?
Answer$4$ babies weigh more than $2.8\ kg$.
View full question & answer→Question 51 Mark
The final marks in mathematics of $30$ students are as follows: $53, 61, 48, 60, 78, 68, 55, 100, 67, 90 75, 88, 77, 37, 84, 58, 60, 48, 62, 56 44, 58, 52, 64, 98, 59, 70, 39, 50, 60$ How many have scored less than $50$?
Answer$5$ students scored less than $50$.
View full question & answer→Question 61 Mark
The weights of new born babies (in kg) in a hospital on a particular day are as follows: $2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4$ Rearrange the weights in descending order.
AnswerWeights in descending order: $3.1, 3.0, 2.9, 2.9, 2.8, 2.8, 2.7, 2.7, 2.6, 2.5, 2.5, 2.4, 2.3, 2.2, 2.1$
View full question & answer→Question 71 Mark
The weights of new born babies (in kg) in a hospital on a particular day are as follows: $2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4$ How many babies weigh below $2.5\ kg$?
Answer$4$ babies weigh below $2.5\ kg$.
View full question & answer→Question 81 Mark
The final marks in mathematics of $30$ students are as follows: $53, 61, 48, 60, 78, 68, 55, 100, 67, 90 75, 88, 77, 37, 84, 58, 60, 48, 62, 56 44, 58, 52, 64, 98, 59, 70, 39, 50, 60$ What is the range?
AnswerRange is = Maximum observation – Minimum observation. $= 100 – 37 = 63.$
View full question & answer→Question 91 Mark
The weights of new born babies (in kg) in a hospital on a particular day are as follows: $2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4$ Determine the lowest weight.
AnswerLowest weight: $2.1\ Kg.$
View full question & answer→Question 101 Mark
The weights of new born babies (in kg) in a hospital on a particular day are as follows: $2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4$ Determine the highest weight.
AnswerHighest weight: $3.1\ Kg.$
View full question & answer→Question 111 Mark
Define the following terms: Frequency of an observation.
AnswerFrequency of an observation: The number of times an observation occurs in a given data is called the frequency of an observation.
View full question & answer→Question 121 Mark
Define the following terms: Data.
AnswerData: The collection of observations is known as data.
View full question & answer→Question 131 Mark
Define the following terms: Frequency distribution.
AnswerFrequency Distribution: It is a method of presenting raw data in a form that can be easily understood.
View full question & answer→Question 141 Mark
The final marks in mathematics of $30$ students are as follows: $53, 61, 48, 60, 78, 68, 55, 100, 67, 90 75, 88, 77, 37, 84, 58, 60, 48, 62, 56 44, 58, 52, 64, 98, 59, 70, 39, 50, 60$ If $40$ is the pass mark how many have failed?
AnswerIf $40$ is the pass mark, then only $2$ students have failed.
View full question & answer→Question 151 Mark
The weights of new born babies (in kg) in a hospital on a particular day are as follows:
$2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4$
How many babies weigh $2.8\ kg$?
Answer$2$ babies weigh $2.8\ kg.$
View full question & answer→Question 161 Mark
The final marks in mathematics of $30$ students are as follows:
$53, 61, 48, 60, 78, 68, 55, 100, 67, 90$
$75, 88, 77, 37, 84, 58, 60, 48, 62, 56$
$44, 58, 52, 64, 98, 59, 70, 39, 50, 60$
What is the highest score?
AnswerThe highest score is $100$.
View full question & answer→Question 171 Mark
The final marks in mathematics of $30$ students are as follows: $53, 61, 48, 60, 78, 68, 55, 100, 67, 90 75, 88, 77, 37, 84, 58, 60, 48, 62, 56 44, 58, 52, 64, 98, 59, 70, 39, 50, 60$ How many have scored $75$ or more?
Answer$8$ students have scored $75$ or more.
View full question & answer→Question 181 Mark
The final marks in mathematics of $30$ students are as follows: $53, 61, 48, 60, 78, 68, 55, 100, 67, 90 75, 88, 77, 37, 84, 58, 60, 48, 62, 56 44, 58, 52, 64, 98, 59, 70, 39, 50, 60$ What is the lowest score?
AnswerThe lowest score is $37$.
View full question & answer→Question 191 Mark
The weights of new born babies (in kg) in a hospital on a particular day are as follows:
$2.3, 2.2, 2.1, 2.7, 2.6, 3.0, 2.5, 2.9, 2.8, 3.1, 2.5, 2.8, 2.7, 2.9, 2.4$
Determine the range.
AnswerRange = Maximum observation – Minimum observation
$= (3.1-2.1) kg = 1.0\ Kg.$
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