Question
Download Solution PDFनिम्नलिखित वर्गीकृत बारंबारता बंटन पर विचार कीजिए:
|
X |
F |
|
0-10 |
8 |
|
10-20 |
12 |
|
20-30 |
10 |
|
30-40 |
P |
|
40-50 |
9 |
यदि उपरोक्त आँकड़ों का माध्य 25.2 है, तब p का मान क्या है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF|
X |
F |
Z |
F × Z |
|
0-10 |
8 |
5 |
40 |
|
10-20 |
12 |
15 |
180 |
|
20-30 |
10 |
25 |
250 |
|
30-40 |
P |
35 |
35P |
|
40-50 |
9 |
45 |
405 |
Z प्रत्येक आँकड़ें के लिए x के परिसर का मध्यबिंदु है।
सभी F × Z का योग = 875 + 35P
उपरोक्त आँकड़ों का माध्य 25.2 है और सभी F का योग = 8 + 12 + 10 + P + 9 = 39 + P
माध्य \(= \frac{{875 + 35P}}{{39 + P}} = 25.2\)
⇒ 9.8 P = 107.8
⇒ P = 11Last updated on May 29, 2025
-> The UPSC CDS 2 Notification has been released at upsconline.gov.in. for 453 vacancies.
-> Candidates can apply online from 28th May to 17th June 2025.
-> The CDS 2 Exam will be held on 14th September 2025.
-> Attempt UPSC CDS Free Mock Test to boost your score.
-> The selection process includes Written Examination, SSB Interview, Document Verification, and Medical Examination.
-> Refer to the CDS Previous Year Papers to enhance your preparation.