The formula: [Sum of (Observed - Expected)² / Expected] is also known as / सूत्र: [ ((Observed - Expected)²/Expected)] को किस रूप में भी जाना जाता है?

Chi-square statistic / काई-वर्ग सांख्यिकी (Chi-square statistic)

Given below are two statements, one is labelled as Assertion (A)...

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Q.1

ICAR AIEEA PG 2024 - Plant Sciences (Q.4)

MCQ (Single Correct) +4 −1

The formula: $[\text{Sum of } (Observed - Expected)^2 / Expected]$ is also known as

सूत्र: $[\sum \frac{(Observed - Expected)^2}{Expected}]$ को किस रूप में भी जाना जाता है?

F-test statistic F-परीक्षण सांख्यिकी Chi-square statistic काई-वर्ग सांख्यिकी T-test statistic T-परीक्षण सांख्यिकी Variance statistic प्रसरण सांख्यिकी

Q.2

ICAR AIEEA PG 2024 - Plant Sciences (Q.40)

Assertion & Reason +4 −1

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R):

Assertion (A) : In field experiments, the word 'replication' means doing something again in exactly the same way or repeating the treatments.

Reason (R) : The $F_2$ seeds cannot be replicated in the field experiment as the genotype of each seed in an $F_2$ generation is not the same and hence can't be repeated.

In light of the above statements, choose the correct answer from the options given below:

नीचे दो कथन दिए गए हैं, एक को अभिकथन (A) और दूसरे को कारण (R) के रूप में लेबल किया गया है:

अभिकथन (A) : क्षेत्रीय प्रयोगों (field experiments) में, 'पुनरावृत्ति' (replication) शब्द का अर्थ है किसी कार्य को बिल्कुल उसी तरीके से दोबारा करना या उपचारों को दोहराना।

कारण (R) : $F_2$ बीजों को क्षेत्रीय प्रयोग में दोहराया (replicate) नहीं जा सकता क्योंकि $F_2$ पीढ़ी में प्रत्येक बीज का जीनोटाइप समान नहीं होता है और इसलिए इसे दोहराया नहीं जा सकता है।

उपरोक्त कथनों के आलोक में, नीचे दिए गए विकल्पों में से सही उत्तर चुनिए:

Both (A) and (R) are true and (R) is the correct explanation of (A) (A) और (R) दोनों सत्य हैं और (R), (A) की सही व्याख्या है Both (A) and (R) are true but (R) is NOT the correct explanation of (A) (A) और (R) दोनों सत्य हैं लेकिन (R), (A) की सही व्याख्या नहीं है (A) is true but (R) is false (A) सत्य है लेकिन (R) असत्य है (A) is false but (R) is true (A) असत्य है लेकिन (R) सत्य है

Principles of Replication in Field Experimentation:

Assertion (A) is TRUE: In statistical experimental design (R.A. Fisher), 'replication' means applying each treatment to multiple independent experimental plots under identical conditions to provide an estimate of experimental error and increase precision.
Reason (R) is TRUE: Individual $F_2$ plants from a hybrid cross are segregate for multiple loci; each single $F_2$ seed represents an entirely unique, non-identical recombinant genotype. True clonal/genotypic replication cannot be performed on individual $F_2$ seeds (unlike homozygous inbreds or clonal lines).
However, Reason (R) does not explain the foundational statistical definition of replication given in Assertion (A).

Therefore, both (A) and (R) are true, but (R) is NOT the correct explanation of (A). Correct Answer: Option 2.

विस्तृत व्याख्या:

Principles of Replication in Field Experimentation (क्षेत्रीय प्रयोगों में पुनरावृत्ति सिद्धांत):

Assertion (A) is TRUE: In statistical experimental design (R.A. Fisher), 'replication' means applying each treatment to multiple independent experimental plots under identical conditions to provide an estimate of experimental error and increase precision.
Reason (R) is TRUE: Individual $F_2$ plants from a hybrid cross are segregate for multiple loci; each single $F_2$ seed represents an entirely unique, non-identical recombinant genotype. True clonal/genotypic replication cannot be performed on individual $F_2$ seeds (unlike homozygous inbreds or clonal lines).
However, Reason (R) does not explain the foundational statistical definition of replication given in Assertion (A).

Therefore, both (A) and (R) are true, but (R) is NOT the correct explanation of (A). Correct Answer: Option 2.

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report