Statistical Diagrams
1. 50 students each record the number of glasses of water they drink in one day.
The results for 10 of the students are shown below.
2 | 5 | 1 | 3 | 2 | 1 | 0 | 0 | 1 | 1 |
i) The results for the remaining 40 students are recorded in the table.
Complete the table to show the results for all 50 students.
Number of glasses of water | Tally | Frequency |
0 |
| |
1 | ||
2 | ||
3 | ||
4 | ||
5 | ||
Total | 50 |
[2]
ii) Write down the range.
[1]
iii) Find the median.
[2]
iv) Find the percentage of the 50 students who drink 4 glasses of water.
[1]
v) One of the 50 students is chosen at random.
Find the probability that this student drinks fewer than 2 glasses of water in one day.
Give your answer as a fraction in its lowest terms.
[2]
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
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