The following table shows data during a 1 hr exam for a student-Whline lendarray The number of questions completed by the student in the last 10 minutes of the examination is -A-B-

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Standard X

Mathematics

Grouped Frequency Table

The following...

Question

The following table shows data during a 1hr exam for a student.

$\begin{matrix} Time during exam(mins) & Total number of questions solved in the exam 0 - 10 & 2 10 - 20 & 5 20 - 30 & 10 30 - 40 & 15 40 - 50 & 17 50 - 60 & 25 \end{matrix}$

The number of questions completed by the student in the last 10 minutes of the examination is ?

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Solution

The correct option is A

The table contains the time wise number of questions solved by a student in 1hr .The total number of questions solved as given in the table is the cumulative frequencyof the number of questions and not the frequency which can be understood from the data points. In 0-10 mins of the exam , a student solved 2 questions.

In 10-20 mins of the exam he/she solved 5 questions which implies that he/she solved 3 questions in next 10 mins of the exam.

Total number of questions solved within 60 minutes = 25

Total number of questions solved within 50 minutes = 17

Total number of questions solved in the last 10 minutes = 25 - 17 = 8

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Similar questions

The following table shows data during a 1hr exam for a student.

$\begin{matrix} T i m e d u r i n g e x a m (m i n s) & T o t a l n u m b e r o f q u e s t i o n s s o l v e d i n t h e e x a m 0 - 10 & 2 10 - 20 & 5 20 - 30 & 10 30 - 40 & 15 40 - 50 & 20 50 - 60 & 25 \end{matrix}$

Plot the less than type ogive curve and hence determine the median on the graph.

The following table shows data during a 1hr exam for a student.

$\begin{matrix} Time during exam(mins) & Total number of questions solved in the exam 0 - 10 & 2 10 - 20 & 5 20 - 30 & 10 30 - 40 & 15 40 - 50 & 17 50 - 60 & 25 \end{matrix}$

Plot the less than type ogive curve

The following table shows data during a 1hr exam for a student.

$\begin{matrix} T i m e d u r i n g e x a m (m i n s) & T o t a l n u m b e r o f q u e s t i o n s s o l v e d i n t h e e x a m 0 - 10 & 2 10 - 20 & 5 20 - 30 & 10 30 - 40 & 15 40 - 50 & 17 50 - 60 & 25 \end{matrix}$

Which of the following graphs comes closest to depicting the correct value of the median?

Directions for questions 1 to 5:

The following table gives the marks scored by 5 students in 4 different subjects (out of 100) during a monthly test. Study the data carefully and answer the questions that follows:
$\begin{matrix} Year & Physics & Chemistry & Biology & Mathmatics Abin & 50 & 85 & 59 & 78 Bobby & 85 & 100 & 67 & 88 Chris & 60 & 70 & 80 & 90 Davis & 95 & 99 & 100 & 100 \end{matrix}$ Q. What was Bobby’s score in Biology?

Q. Question 10
The following table shows the cumulative frequency distribution of marks of 800 students in an examination.

\begin{matrix} M a r k s & N u m b e r o f s t u d e n t s B e l o w 10 & 10 B e l o w 20 & 50 B e l o w 30 & 130 B e l o w 40 & 270 B e l o w 50 & 440 B e l o w 60 & 570 B e l o w 70 & 670 B e l o w 80 & 740 B e l o w 90 & 780 B e l o w 100 & 800 \end{matrix}

Construct a frequency distribution table for the data above.

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The following table shows data during a 1hr exam for a student. Time during exam(mins) Total number of questions solved in the exam 0−10210−20520−301030−401540−501750−6025 The number of questions completed by the student in the last 10 minutes of the examination is ?