What is the value of rank correlation coefficient if $n=10$ and $3 \Sigma d^2=495\ ?$
- A$-1$
- ✓$0$
- C$0.5$
- D$1$
Answer: B.
View full solution →94 questions across 6 question groups — pick any mix to generate a Statistics paper with step-by-step answer keys.
MCQ
18 Q→021 Marks Each
23 Q→032 Marks Each
27 Q→043 Marks Each
12 Q→054 Marks Each
5 Q→065 Mark Each
9 Q→One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Answer: B.
View full solution →Answer: C.
View full solution →Answer: D.
View full solution →Answer: C.
View full solution →Answer: C.
View full solution →| Rank for number of customers $R_{(x)}$ | $6$ | $4.5$ | $3$ | $4.5$ | $1$ | $2$ |
| Rank for sales $($thousand $₹) R_{(y)}$ |
$4.5$ | $4.5$ | $2.5$ | $6$ | $1$ | $2.5$ |
| Time of usage of cars $($years$) x$ | $4$ | $4.5$ | $5$ | $6.8$ | $4.7$ |
| Maintenance expenditure $($thousand $₹) y$ | $3.5$ | $3.5$ | $3.5$ | $3.5$ | $3.5$ |
| Marks of understanding English grammar $(x)$ | $28$ | $15$ | $5$ | $10$ | $15$ | $25$ | $15$ | $20$ |
| Marks of understanding Gujaratigrammar $(y)$ | $27$ | $10$ | $22$ | $20$ | $6$ | $14$ | $10$ | $8$ |
| Rank | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ |
| Judge $I$ | $C$ | $F$ | $A$ | $B$ | $E$ | $D$ | $G$ |
| Judge $II$ | $B$ | $D$ | $F$ | $A$ | $C$ | $E$ | $G$ |
| Rank by judge $(I)$ | $1$ | $6$ | $5$ | $10$ | $3$ | $2$ | $4$ | $9$ | $7$ | $8$ |
| Rank by judge$(II)$ | $3$ | $5$ | $8$ | $4$ | $7$ | $10$ | $2$ | $1$ | $6$ | $9$ |
| Marks of written exam | $50$ | $55$ | $55$ | $60$ | $65$ | $65$ | $65$ | $60$ | $60$ | $50$ |
| Marks of oral exam | $11$ | $13$ | $14$ | $16$ | $16$ | $15$ | $15$ | $14$ | $13$ | $13$ |
| Difference of Std $10$ marks | $-12$ | $-16$ | $-8$ | $16$ | $12$ | $8$ |
| Difference of Std $12$ marks | $-10$ | $-6$ | $-4$ | $4$ | $6$ | $2$ |
| Import $($ten million $₹)$ | $18$ | $19$ | $20$ | $21$ | $22$ | $23$ | $24$ |
| Export $($ten million $₹)$ | $95$ | $88$ | $70$ | $66$ | $57$ | $50$ | $44$ |
| Height of Father $(cm)$ | $150$ | $163$ | $155$ | $164$ | $163$ | $160$ | $165$ |
| Height of Son $(cm)$ | $156$ | $160$ | $153$ | $160$ | $163$ | $158$ | $163$ |
| Weekly income $(100 ₹)$ | $20$ | $25$ | $30$ | $28$ | $27$ | $30$ | $29$ | $28$ | $24$ | $22$ |
| Weekly expenditure $(00 ₹)$ | $18$ | $20$ | $27$ | $27$ | $25$ | $29$ | $27$ | $28$ | $22$ | $20$ |
| Weekly income $(100 ₹)$ | $20$ | $25$ | $30$ | $28$ | $27$ | $30$ | $29$ | $28$ | $24$ | $22$ |
| Weekly expenditure $(00 ₹)$ | $18$ | $20$ | $27$ | $27$ | $25$ | $29$ | $27$ | $28$ | $22$ | $20$ |
| Temperature $(@)x$ | $-4$ | $-3$ | $-2$ | $0$ | $1$ | $3$ | $5$ |
| Sale of woollen coats $($pieces$) y$ | $19$ | $15$ | $12$ | $10$ | $8$ | $5$ | $4$ |
| Price of vehicle $($thousand $₹) x$ |
$60$ | $58$ | $70$ | $75$ | $65$ | $80$ | $63$ |
| Annual sales $(100$ units$) y$ | $4$ | $3$ | $10$ | $12$ | $8$ | $18$ | $7$ |
Pick question groups from the list above, set marks and difficulty, and export a branded PDF with step-by-step answer keys. First 3 chapters free — no signup.