The following pictograph represents some surnames of people listed in the telephone directory of a city.

Observe the pictograph and answer the following question:
(a) How many people have the surname Roy?
(b) Which surname appears the maximum number of times in the telephone directory?
(c) Which surname appears the least number of times in the directory?
(d) Which two surnames appear an equal number of times?

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Solution

(a)

So, $400$ peoples have the surname Roy.
(b) From the pictograph, we can observe that surname Patel appears the maximum number of times in the directory ( $500$ times).
(c) From the pictograph, we can observe that surname Saikia appears the least number of times in the directory ( $200$ times).
(d) Rao and Roy surnames appear an equal number of times ( $400$ times).

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Similar questions

Q. Following pictograph represents some surnames of people listed in the telephone directory of a city Observe the pictograph and answer the following questions:

(a) How many people have surname ‘Roy’ ?

(b) Which surname appears the maximum number of times in the telephone directory

(c) Which surname appears the least number of times in the directory?

(d) Which two surnames appear an equal number of times?

Question 9 (ii)
100 surnames were randomly picked up from a local telephone directory and a frequency distribution of the number of letters in the English alphabet in the surnames was found as follows:

$\begin{matrix} Number of letters & Number of surnames 1 - 4 & 6 4 - 6 & 30 6 - 8 & 44 8 - 12 & 16 12 - 20 & 4 \end{matrix}$
(ii) Write the class interval in which the maximum number of surname lie.

100 surnames were randomly picked from a local directory and the distribution of a number of letters of the English alphabet in the surname was obtained as follows:

Determine the median and mean a number of letters in the surname. Also, find the modal size of surnames

Q. 100 surnames were randomly picked up from a local telephone directory and the frequency distribution of the number of letters in the English alphabets in the surnames was obtained as follows:

No. of letters	No. of surnames
1-4	6
4-7	30
7-10	40
10-13	16
13-16	4
16-19	4

Determine the median number of letters in the surnames. Find the mean number of letters in the surnames? Also, find the modal size of the surnames

100 surnames were randomly picked up from a local telephone directory and a frequency distribution of the number of letters in the English alphabet in the surnames was found as follows:

Number of letters

Number of surnames

1 − 4

4 − 6

6 − 8

8 − 12

12 − 20

(i) Draw a histogram to depict the given information.

(ii) Write the class interval in which the maximum number of surname lie.

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