Histogram

Q. How many students have height more than or equal to 135 cm but less than 150 cm?

1. 46
2. 53
3. 42
4. 47

Q.

The type of graph which should be used to represent the given data is a histogram.

$$\begin{array}{cccccc}Weights\left(Kg\right)& 40-45& 45-50& 50-55& 55-60& 60-65\\ No.ofPerson& 15& 12& 13& 16& 18\end{array}$$.

1. False

2. True

Q.

Is it correct to say that in a histogram, the area of each rectangle is proportional to the class size of the corresponding class interval? If not, correct the statement.

Q.

Read the graph carefully and answer the question.

How many students play games other than Soccer, Softball and Basketball?

1. 2

2. 1

3. 3

4. 4

Q. What annual instalment will discharge a debt of INR 1092 due in 3 years at 12 % Simple interest ?

1. INR 275
2. INR 250
3. INR 300
4. INR 393. 12

Q. Principal $+$ Simple interest $=$ ?

1. rate
2. time period
3. amount
4. tax

Q. The bar graph equivalent to a grouped frequency table is called .

Q. When bar graphs are put together in the form of ranges, we obtain a pictorial representation known as .

Q. If there are too many data points, say in the order of thousands, is it feasible to plot bar graphs manually?
If not, then plotting of which type of graph is favorable?

Q. In a class of 50 students, each member has to participate in activities like art, music, dance and sports. $\frac{3}{10}$ participated in dance, $\frac{1}{10}$ in music and 17 opted for art. How many members participated for sports?

Q. Which of the following is true or false?
a) the large size of the population, smaller will be the size of the sample.
b) the sample size is fixed according to the size of the population.

1. Both (a) and (b) are true.
2. (a) is true, but (b) is false.
3. (a) and (b) are false.
4. (a) is false but (b) is true.

Q. Choose the plot that depicts the given data points. Age Group (years) Number of Boys

$0-5$	$60$
$5-10$	$65$
$10-15$	$50$
$15-20$	$40$

1. 
2. 
3. (a) and (b) above.
4. None of the above.

Q. The histogram for the following data:

would be:

1. False
2. True

Q. In histogram, the rectanglular bar corresponding to each range interval -

1. has a height equal to the frequency of the corresponding range interval.
2. intersects with its preceding and subsequent rectangles, if any.
3. maintains a gap of equal length with its preceding and subsequent rectangular bars, if any.
4. None of the above.

Q. Smith invested 5000$fortwoyears.Forthefirstyear,therateofinterestwas$78.5)

Q. The quantity of pecans harvested is shown in the table below:

How many trees produced the fewest number of pecans? Also, find how many trees produced more than 1600 pecans?

1. $13,50$
2. $14,21$
3. $50,50$
4. $13,46$

Q.

The number of students who have scored between 80-90 marks is

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