Question

During Manche Gujarat 100 books were given to each of 100 schools. After two months, the number of books that were read in each school was recorded as :85 67 28 32 65 65 69 33 98 9676 42 32 38 42 40 40 69 95 9275 83 76 85 85 62 37 65 63 4989 65 73 81 48 52 64 76 83 9295 68 55 79 81 83 59 82 75 8286 90 44 62 31 32 38 42 39 8685 56 56 23 40 77 83 85 30 8769 83 86 50 45 39 84 75 66 8392 75 89 66 91 38 88 89 93 2953 69 90 55 66 49 52 83 34 56Prepare a frequency distribution table with classes 20 — 29, 30 — 39, .... etc. Also find number of schools where more than 50 % books were read.

Answer 1

Answer:

i done knOW answer friend so sorry Step-by-step explanation: question very deficult .

Answer 2

Step-by-step explanation:

To prepare frequency distribution table as the class interval 20 — 29, 30 — 39, .... etc

Count the numbers which lies in the range 20-29,30-39,40-49 and so on

$\begin{tabular}{|l|l|}</p><p>\cline{1-2}</p><p>Class Interval & Frequency \\ \cline{1-2}</p><p>20-29 & 3 \\ \cline{1-2}</p><p>30-39 & 13 \\ \cline{1-2}</p><p>40-49 & 11 \\ \cline{1-2}</p><p>50-59 & 10 \\ \cline{1-2}</p><p>60-69 & 17 \\ \cline{1-2}</p><p>70-79 & 10 \\ \cline{1-2}</p><p>80-89 & 25 \\ \cline{1-2}</p><p>90-99 & 11 \\ \cline{1-2}</p><p>Total & 100 \\ \cline{1-2}</p><p>\end{tabular}$

More than 50% of books read by all the schools lies between 50-59 to 90-99 classes

= 10+17+10+25+11

=73 schools

Hope it helps you.