The correlation coefficient between \( x \) and \( y \) from the
\(...
The correlation coefficient between \( x \) and \( y \) from the
\( \mathrm{P} \) following data \( \sum x=40, \quad \sum y=50, \quad \sum x y=220 \),
W \( \sum x^{2}=200, \sum y^{2}=262, n=10 \) is
(1) 0.89
(2) 0.76
(3) 0.91
(4) 0.98
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions
| 2023-04-07 | 2. \( 4^{2 n+1}+3^{3 n+1} \) is divisible by for all \( n \in N \) ... |
| 2023-04-07 | By using "Principle of Mathematical Induction", prove
\( \mathrm{P}... |
| 2023-04-07 | Let \( P(n) \) denotes the statement that \( n^{2}+n \) is odd.
\( ... |
| 2023-04-07 | For all \( n \in N, \sum n \)
\( \mathrm{P} \)
(1) \( \frac{(2 n+1)... |
| 2023-04-07 | A data has highest value 120 and lowest value 71. A
P frequency dis... |
| 2023-04-07 | The proposition that is not true for \( n1(n \in N) \),
\( \mathrm{... |
| 2023-04-07 | Prove by the principle of mathematical induction that
\( \mathrm{P}... |
| 2023-04-07 | For all \( n \in N, n^{4} \) is less than:
\( \mathrm{P} \)
(1) \( ... |
| 2023-04-07 | The nth term of the series
\( \mathrm{P} \) \( 4+14+30+52+80+114+\l... |
| 2023-04-07 | \( x\left(x^{(n-1)}-n \alpha^{(n-1)}\right)+\alpha^{n}(n-1) \) is d... |
| 2023-04-07 | The correlation coefficient between \( x \) and \( y \) from the
\(... |
| 2023-04-07 | The sum of the series
\( \mathrm{P} \) \( \frac{3}{1^{2}}+\frac{5}{... |
| 2023-04-07 | The sum of the squares of three consecutive odd
\( \mathrm{P} \) nu... |
| 2023-04-07 | Statement-1: For each natural number \( n \),
\( \mathrm{P} \) \( (... |
| 2023-04-07 | Which one is not true
\( \mathrm{P} \)
(1) \( n(n+1)(2 n+1) \) is d... |
| 2023-04-07 | Choose the statement which is correct for all \( n \in N \).
\( \ma... |
| 2023-04-07 | The mean and standard deviation of 15 observations
\( \mathrm{P} \)... |
| 2023-04-07 | The mean of the numbers \( a, b, 8,5,10 \) is 6 and their
\( \mathr... |
| 2023-04-07 | The mean and standard deviation of 50 observations
\( \mathrm{P} \)... |
| 2023-04-07 | For every natural number \( n \) :
\( \mathrm{P} \)
(1) \( n2^{n} \... |
| 2023-04-07 | Let \( S(k)=1+3+5+\ldots \ldots+(2 k-1)=3+k^{2} \),
\( \mathrm{P} \... |
0